Introduction to Imagine

Transcript

1. 1.

   Introduction to Imagine image processing for PHP 5.3+ Sunday, October

   16, 11
2. 2.

   Image processing in PHP is hard Sunday, October 16, 11

3. 3.

   There are many existing tools • GD • Imagick (ImageMagick

   extension) • Gmagick (GraphicsMagick extension) • Cairo http://www.imagemagick.org/ http://www.graphicsmagick.org/ Sunday, October 16, 11
4. 4.

   • not testable • inconsistent • have cluttered apis •

   not intuitive Existing tools Sunday, October 16, 11
5. 5.

   Resize in GD <?php // open original and memorize dimensions

   $src = imagecreatefrompng('/path/to/image.png'); $srcWidth = imagesx($src); $srcHeight = imagesy($src); // desclare target dimensions $destWidth = //target width $destHeight = //target height // create target canvas $dest = imagecreatetruecolor($destWidth, $destHeight); // keep transparency imagealphablending($dest, false); imagesavealpha($dest, true); // stretch image to fit target size // and put it on target canvas imagecopyresampled( $dest, $src, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight ); // save image on filesystem as png imagepng($dest,'/path/to/resized/image.png'); Sunday, October 16, 11
6. 6.

   Resize in GD <?php // open original and memorize dimensions

   $src = imagecreatefrompng('/path/to/image.png'); $srcWidth = imagesx($src); $srcHeight = imagesy($src); // desclare target dimensions $destWidth = //target width $destHeight = //target height // create target canvas $dest = imagecreatetruecolor($destWidth, $destHeight); // keep transparency imagealphablending($dest, false); imagesavealpha($dest, true); // stretch image to fit target size // and put it on target canvas imagecopyresampled( $dest, $src, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight ); // save image on filesystem as png imagepng($dest,'/path/to/resized/image.png'); Sunday, October 16, 11
7. 7.

   Resize in GD <?php // open original and memorize dimensions

   $src = imagecreatefrompng('/path/to/image.png'); $srcWidth = imagesx($src); $srcHeight = imagesy($src); // desclare target dimensions $destWidth = //target width $destHeight = //target height // create target canvas $dest = imagecreatetruecolor($destWidth, $destHeight); // keep transparency imagealphablending($dest, false); imagesavealpha($dest, true); // stretch image to fit target size // and put it on target canvas imagecopyresampled( $dest, $src, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight ); // save image on filesystem as png imagepng($dest,'/path/to/resized/image.png'); Sunday, October 16, 11
8. 8.

   Resize in GD <?php // open original and memorize dimensions

   $src = imagecreatefrompng('/path/to/image.png'); $srcWidth = imagesx($src); $srcHeight = imagesy($src); // desclare target dimensions $destWidth = //target width $destHeight = //target height // create target canvas $dest = imagecreatetruecolor($destWidth, $destHeight); // keep transparency imagealphablending($dest, false); imagesavealpha($dest, true); // stretch image to fit target size // and put it on target canvas imagecopyresampled( $dest, $src, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight ); // save image on filesystem as png imagepng($dest,'/path/to/resized/image.png'); Sunday, October 16, 11
9. 9.

   Resize in GD <?php // open original and memorize dimensions

   $src = imagecreatefrompng('/path/to/image.png'); $srcWidth = imagesx($src); $srcHeight = imagesy($src); // desclare target dimensions $destWidth = //target width $destHeight = //target height // create target canvas $dest = imagecreatetruecolor($destWidth, $destHeight); // keep transparency imagealphablending($dest, false); imagesavealpha($dest, true); // stretch image to fit target size // and put it on target canvas imagecopyresampled( $dest, $src, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight ); // save image on filesystem as png imagepng($dest,'/path/to/resized/image.png'); Sunday, October 16, 11
10. 10.

    Resize in GD <?php // open original and memorize dimensions

    $src = imagecreatefrompng('/path/to/image.png'); $srcWidth = imagesx($src); $srcHeight = imagesy($src); // desclare target dimensions $destWidth = //target width $destHeight = //target height // create target canvas $dest = imagecreatetruecolor($destWidth, $destHeight); // keep transparency imagealphablending($dest, false); imagesavealpha($dest, true); // stretch image to fit target size // and put it on target canvas imagecopyresampled( $dest, $src, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight ); // save image on filesystem as png imagepng($dest,'/path/to/resized/image.png'); Sunday, October 16, 11
11. 11.

    Resize in GD <?php // open original and memorize dimensions

    $src = imagecreatefrompng('/path/to/image.png'); $srcWidth = imagesx($src); $srcHeight = imagesy($src); // desclare target dimensions $destWidth = //target width $destHeight = //target height // create target canvas $dest = imagecreatetruecolor($destWidth, $destHeight); // keep transparency imagealphablending($dest, false); imagesavealpha($dest, true); // stretch image to fit target size // and put it on target canvas imagecopyresampled( $dest, $src, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight ); // save image on filesystem as png imagepng($dest,'/path/to/resized/image.png'); Sunday, October 16, 11
12. 12.

    Resize in Imagick <?php // declare target dimensions $destWidth =

    //target width $destHeight = //target height // open image $image = new Imagick('/path/to/image.png'); // resize, constraining proportions $image->adaptiveResizeImage($width, $height); // write to disk $image->writeImage('/path/to/resized/image.png'); Sunday, October 16, 11
13. 13.

    Resize in Imagick <?php // declare target dimensions $destWidth =

    //target width $destHeight = //target height // open image $image = new Imagick('/path/to/image.png'); // resize, constraining proportions $image->adaptiveResizeImage($width, $height); // write to disk $image->writeImage('/path/to/resized/image.png'); Sunday, October 16, 11
14. 14.

    Resize in Imagick <?php // declare target dimensions $destWidth =

    //target width $destHeight = //target height // open image $image = new Imagick('/path/to/image.png'); // resize, constraining proportions $image->adaptiveResizeImage($width, $height); // write to disk $image->writeImage('/path/to/resized/image.png'); Sunday, October 16, 11
15. 15.

    Resize in Imagick <?php // declare target dimensions $destWidth =

    //target width $destHeight = //target height // open image $image = new Imagick('/path/to/image.png'); // resize, constraining proportions $image->adaptiveResizeImage($width, $height); // write to disk $image->writeImage('/path/to/resized/image.png'); Sunday, October 16, 11
16. 16.

    Resize in Imagick <?php // declare target dimensions $destWidth =

    //target width $destHeight = //target height // open image $image = new Imagick('/path/to/image.png'); // resize, constraining proportions $image->adaptiveResizeImage($width, $height); // write to disk $image->writeImage('/path/to/resized/image.png'); Sunday, October 16, 11
17. 17.

    Existing tools don’t cut it Sunday, October 16, 11

18. 18.

    Imagine... • all drivers implemented the same interfaces • code

    could be reused with any driver • there were interfaces for mocking in tests • API was simple and intuitive Sunday, October 16, 11
19. 19.

    STOP Sunday, October 16, 11

20. 20.

    Imagine for PHP 5.3+ stop imagining, it is all there

    Sunday, October 16, 11
21. 21.

    Imagine for PHP 5.3+ Inspired by Python’s PIL http://www.pythonware.com/products/pil/ Sunday,

    October 16, 11
22. 22.

    Resize in Imagine (GD) <?php // declare target dimensions $width

    = //target width $height = //target height // get Imagine instance for GD $imagine = new Imagine\Gd\Imagine(); // resize and save (format is inferred from extension) $imagine->open('/path/to/image.png') ->resize(new Imagine\Image\Box($width, $height)) ->save('/path/to/resized/image.png'); Sunday, October 16, 11
23. 23.

    Resize in Imagine (Imagick) <?php // declare target dimensions $width

    = //target width $height = //target height // get Imagine instance for Imagick $imagine = new Imagine\Imagick\Imagine(); // resize and save (format is inferred from extension) $imagine->open('/path/to/image.png') ->resize(new Imagine\Image\Box($width, $height)) ->save('/path/to/resized/image.png'); Sunday, October 16, 11
24. 24.

    Consistency 1. identify operations 2. split into groups 3. implement

    per driver Sunday, October 16, 11
25. 25.

    Operations • resize • rotate • crop • save •

    copy • paste • apply mask • ellipse • polygon • line • dot • arc • pie slice • text Sunday, October 16, 11
26. 26.

    manipulations Operations • resize • rotate • crop • save

    • copy • paste • apply mask • ellipse • polygon • line • dot • arc • pie slice • text Sunday, October 16, 11
27. 27.

    Operations • resize • rotate • crop • save •

    copy • paste • apply mask • ellipse • polygon • line • dot • arc • pie slice • text drawings Sunday, October 16, 11
28. 28.

    Example Sunday, October 16, 11

29. 29.

    Thumbnail Sunday, October 16, 11

30. 30.

    Thumbnail <?php $imagine = new Imagine\Gd\Imagine(); $mode = Imagine\Image\ImageInterface::THUMBNAIL_OUTBOUND; //or

    $mode = Imagine\Image\ImageInterface::THUMBNAIL_INSET; $imagine->open('/path/to/google/logo.png') ->thumbnail(new Imagine\Image\Box(100, 100), $mode) ->save('/path/to/google/logo/thumbnail.png'); Sunday, October 16, 11
31. 31.

    Reflection Sunday, October 16, 11

32. 32.

    Reflection <?php $imagine = new Imagine\Gd\Imagine(); $logo = $imagine->open('/path/to/google/logo.png'); $size

    = $logo->getSize(); $canvas = $imagine->create( new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2), new Imagine\Image\Color('000', 100) ); $reflection = $logo->copy() ->flipVertically() ->applyMask( $imagine->create($size) ->fill( new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), new Imagine\Image\Color(array(127, 127, 127)), new Imagine\Image\Color('fff') ) ) ); $canvas->paste($logo, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())) ->save('/path/to/google/logo/reflection.png'); Sunday, October 16, 11
33. 33.

    Reflection <?php $imagine = new Imagine\Gd\Imagine(); $logo = $imagine->open('/path/to/google/logo.png'); $size

    = $logo->getSize(); $canvas = $imagine->create( new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2), new Imagine\Image\Color('000', 100) ); $reflection = $logo->copy() ->flipVertically() ->applyMask( $imagine->create($size) ->fill( new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), new Imagine\Image\Color(array(127, 127, 127)), new Imagine\Image\Color('fff') ) ) ); $canvas->paste($logo, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())) ->save('/path/to/google/logo/reflection.png'); open image to reflect and remember its size Sunday, October 16, 11
34. 34.

    Reflection <?php $imagine = new Imagine\Gd\Imagine(); $logo = $imagine->open('/path/to/google/logo.png'); $size

    = $logo->getSize(); $canvas = $imagine->create( new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2), new Imagine\Image\Color('000', 100) ); $reflection = $logo->copy() ->flipVertically() ->applyMask( $imagine->create($size) ->fill( new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), new Imagine\Image\Color(array(127, 127, 127)), new Imagine\Image\Color('fff') ) ) ); $canvas->paste($logo, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())) ->save('/path/to/google/logo/reflection.png'); create empty canvas to fit image and reflection Sunday, October 16, 11
35. 35.

    Reflection <?php $imagine = new Imagine\Gd\Imagine(); $logo = $imagine->open('/path/to/google/logo.png'); $size

    = $logo->getSize(); $canvas = $imagine->create( new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2), new Imagine\Image\Color('000', 100) ); $reflection = $logo->copy() ->flipVertically() ->applyMask( $imagine->create($size) ->fill( new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), new Imagine\Image\Color(array(127, 127, 127)), new Imagine\Image\Color('fff') ) ) ); $canvas->paste($logo, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())) ->save('/path/to/google/logo/reflection.png'); make a copy of source, flipped vertically Sunday, October 16, 11
36. 36.

    <?php $imagine = new Imagine\Gd\Imagine(); $logo = $imagine->open('/path/to/google/logo.png'); $size =

    $logo->getSize(); $canvas = $imagine->create( new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2), new Imagine\Image\Color('000', 100) ); $reflection = $logo->copy() ->flipVertically() ->applyMask( $imagine->create($size) ->fill( new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), new Imagine\Image\Color(array(127, 127, 127)), new Imagine\Image\Color('fff') ) ) ); $canvas->paste($logo, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())) ->save('/path/to/google/logo/reflection.png'); Reflection create image like the one above Sunday, October 16, 11
37. 37.

    <?php $imagine = new Imagine\Gd\Imagine(); $logo = $imagine->open('/path/to/google/logo.png'); $size =

    $logo->getSize(); $canvas = $imagine->create( new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2), new Imagine\Image\Color('000', 100) ); $reflection = $logo->copy() ->flipVertically() ->applyMask( $imagine->create($size) ->fill( new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), new Imagine\Image\Color(array(127, 127, 127)), new Imagine\Image\Color('fff') ) ) ); $canvas->paste($logo, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())) ->save('/path/to/google/logo/reflection.png'); Reflection replace white regions with transparency Sunday, October 16, 11
38. 38.

    <?php $imagine = new Imagine\Gd\Imagine(); $logo = $imagine->open('/path/to/google/logo.png'); $size =

    $logo->getSize(); $canvas = $imagine->create( new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2), new Imagine\Image\Color('000', 100) ); $reflection = $logo->copy() ->flipVertically() ->applyMask( $imagine->create($size) ->fill( new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), new Imagine\Image\Color(array(127, 127, 127)), new Imagine\Image\Color('fff') ) ) ); $canvas->paste($logo, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())) ->save('/path/to/google/logo/reflection.png'); Reflection place original logo on top of created canvas place reflection underneath it Sunday, October 16, 11
39. 39.

    Piechart Sunday, October 16, 11

40. 40.

    Piechart <?php $imagine = new Imagine\Imagick\Imagine(); $volume = 20; $size

    = new Imagine\Image\Box(300, 200); $center = new Imagine\Image\Point\Center($size); $canvas = $size->increase($volume); $bg = new Imagine\Image\Color('000000', 100); $color1 = new Imagine\Image\Color('FFEF78'); $color2 = new Imagine\Image\Color('8A834B'); $color3 = new Imagine\Image\Color('8A554B'); $color4 = new Imagine\Image\Color('D94616'); $color5 = new Imagine\Image\Color('FEB48D'); $chart = $imagine->create($canvas, $bg); for ($i = $volume; $i > 0; $i--) { $shift = $center->move($i); $chart->draw() ->pieSlice($shift, $size, -10, 70, $color1->darken(68), true) ->pieSlice($shift, $size, 70, 160, $color2->darken(68), true) ->pieSlice($shift, $size, 160, 170, $color3->darken(68), true) ->pieSlice($shift, $size, 170, 210, $color4->darken(68), true) ->pieSlice($shift, $size, 210, 350, $color5->darken(68), true); } $chart->draw() ->pieSlice($center, $size, -10, 70, $color1, true) ->pieSlice($center, $size, 70, 160, $color2, true) ->pieSlice($center, $size, 160, 170, $color3, true) ->pieSlice($center, $size, 170, 210, $color4, true) ->pieSlice($center, $size, 210, 350, $color5, true); $chart->save('/path/to/chart.png'); Sunday, October 16, 11
41. 41.

    Piechart <?php $imagine = new Imagine\Imagick\Imagine(); $volume = 20; $size

    = new Imagine\Image\Box(300, 200); $center = new Imagine\Image\Point\Center($size); $canvas = $size->increase($volume); $bg = new Imagine\Image\Color('000000', 100); $color1 = new Imagine\Image\Color('FFEF78'); $color2 = new Imagine\Image\Color('8A834B'); $color3 = new Imagine\Image\Color('8A554B'); $color4 = new Imagine\Image\Color('D94616'); $color5 = new Imagine\Image\Color('FEB48D'); $chart = $imagine->create($canvas, $bg); for ($i = $volume; $i > 0; $i--) { $shift = $center->move($i); $chart->draw() ->pieSlice($shift, $size, -10, 70, $color1->darken(68), true) ->pieSlice($shift, $size, 70, 160, $color2->darken(68), true) ->pieSlice($shift, $size, 160, 170, $color3->darken(68), true) ->pieSlice($shift, $size, 170, 210, $color4->darken(68), true) ->pieSlice($shift, $size, 210, 350, $color5->darken(68), true); } $chart->draw() ->pieSlice($center, $size, -10, 70, $color1, true) ->pieSlice($center, $size, 70, 160, $color2, true) ->pieSlice($center, $size, 160, 170, $color3, true) ->pieSlice($center, $size, 170, 210, $color4, true) ->pieSlice($center, $size, 210, 350, $color5, true); $chart->save('/path/to/chart.png'); get imagine, define chart 3d volume and size Sunday, October 16, 11
42. 42.

    Piechart <?php $imagine = new Imagine\Imagick\Imagine(); $volume = 20; $size

    = new Imagine\Image\Box(300, 200); $center = new Imagine\Image\Point\Center($size); $canvas = $size->increase($volume); $bg = new Imagine\Image\Color('000000', 100); $color1 = new Imagine\Image\Color('FFEF78'); $color2 = new Imagine\Image\Color('8A834B'); $color3 = new Imagine\Image\Color('8A554B'); $color4 = new Imagine\Image\Color('D94616'); $color5 = new Imagine\Image\Color('FEB48D'); $chart = $imagine->create($canvas, $bg); for ($i = $volume; $i > 0; $i--) { $shift = $center->move($i); $chart->draw() ->pieSlice($shift, $size, -10, 70, $color1->darken(68), true) ->pieSlice($shift, $size, 70, 160, $color2->darken(68), true) ->pieSlice($shift, $size, 160, 170, $color3->darken(68), true) ->pieSlice($shift, $size, 170, 210, $color4->darken(68), true) ->pieSlice($shift, $size, 210, 350, $color5->darken(68), true); } $chart->draw() ->pieSlice($center, $size, -10, 70, $color1, true) ->pieSlice($center, $size, 70, 160, $color2, true) ->pieSlice($center, $size, 160, 170, $color3, true) ->pieSlice($center, $size, 170, 210, $color4, true) ->pieSlice($center, $size, 210, 350, $color5, true); $chart->save('/path/to/chart.png'); get center of the chart account for size of 3d volume in canvas Sunday, October 16, 11
43. 43.

    Piechart <?php $imagine = new Imagine\Imagick\Imagine(); $volume = 20; $size

    = new Imagine\Image\Box(300, 200); $center = new Imagine\Image\Point\Center($size); $canvas = $size->increase($volume); $bg = new Imagine\Image\Color('000000', 100); $color1 = new Imagine\Image\Color('FFEF78'); $color2 = new Imagine\Image\Color('8A834B'); $color3 = new Imagine\Image\Color('8A554B'); $color4 = new Imagine\Image\Color('D94616'); $color5 = new Imagine\Image\Color('FEB48D'); $chart = $imagine->create($canvas, $bg); for ($i = $volume; $i > 0; $i--) { $shift = $center->move($i); $chart->draw() ->pieSlice($shift, $size, -10, 70, $color1->darken(68), true) ->pieSlice($shift, $size, 70, 160, $color2->darken(68), true) ->pieSlice($shift, $size, 160, 170, $color3->darken(68), true) ->pieSlice($shift, $size, 170, 210, $color4->darken(68), true) ->pieSlice($shift, $size, 210, 350, $color5->darken(68), true); } $chart->draw() ->pieSlice($center, $size, -10, 70, $color1, true) ->pieSlice($center, $size, 70, 160, $color2, true) ->pieSlice($center, $size, 160, 170, $color3, true) ->pieSlice($center, $size, 170, 210, $color4, true) ->pieSlice($center, $size, 210, 350, $color5, true); $chart->save('/path/to/chart.png'); colors of pie slices and background Sunday, October 16, 11
44. 44.

    Piechart <?php $imagine = new Imagine\Imagick\Imagine(); $volume = 20; $size

    = new Imagine\Image\Box(300, 200); $center = new Imagine\Image\Point\Center($size); $canvas = $size->increase($volume); $bg = new Imagine\Image\Color('000000', 100); $color1 = new Imagine\Image\Color('FFEF78'); $color2 = new Imagine\Image\Color('8A834B'); $color3 = new Imagine\Image\Color('8A554B'); $color4 = new Imagine\Image\Color('D94616'); $color5 = new Imagine\Image\Color('FEB48D'); $chart = $imagine->create($canvas, $bg); for ($i = $volume; $i > 0; $i--) { $shift = $center->move($i); $chart->draw() ->pieSlice($shift, $size, -10, 70, $color1->darken(68), true) ->pieSlice($shift, $size, 70, 160, $color2->darken(68), true) ->pieSlice($shift, $size, 160, 170, $color3->darken(68), true) ->pieSlice($shift, $size, 170, 210, $color4->darken(68), true) ->pieSlice($shift, $size, 210, 350, $color5->darken(68), true); } $chart->draw() ->pieSlice($center, $size, -10, 70, $color1, true) ->pieSlice($center, $size, 70, 160, $color2, true) ->pieSlice($center, $size, 160, 170, $color3, true) ->pieSlice($center, $size, 170, 210, $color4, true) ->pieSlice($center, $size, 210, 350, $color5, true); $chart->save('/path/to/chart.png'); create chart canvas with transparent background Sunday, October 16, 11
45. 45.

    Piechart <?php $imagine = new Imagine\Imagick\Imagine(); $volume = 20; $size

    = new Imagine\Image\Box(300, 200); $center = new Imagine\Image\Point\Center($size); $canvas = $size->increase($volume); $bg = new Imagine\Image\Color('000000', 100); $color1 = new Imagine\Image\Color('FFEF78'); $color2 = new Imagine\Image\Color('8A834B'); $color3 = new Imagine\Image\Color('8A554B'); $color4 = new Imagine\Image\Color('D94616'); $color5 = new Imagine\Image\Color('FEB48D'); $chart = $imagine->create($canvas, $bg); for ($i = $volume; $i > 0; $i--) { $shift = $center->move($i); $chart->draw() ->pieSlice($shift, $size, -10, 70, $color1->darken(68), true) ->pieSlice($shift, $size, 70, 160, $color2->darken(68), true) ->pieSlice($shift, $size, 160, 170, $color3->darken(68), true) ->pieSlice($shift, $size, 170, 210, $color4->darken(68), true) ->pieSlice($shift, $size, 210, 350, $color5->darken(68), true); } $chart->draw() ->pieSlice($center, $size, -10, 70, $color1, true) ->pieSlice($center, $size, 70, 160, $color2, true) ->pieSlice($center, $size, 160, 170, $color3, true) ->pieSlice($center, $size, 170, 210, $color4, true) ->pieSlice($center, $size, 210, 350, $color5, true); $chart->save('/path/to/chart.png'); build 3d shade of the chart in darker colors Sunday, October 16, 11
46. 46.

    Piechart <?php $imagine = new Imagine\Imagick\Imagine(); $volume = 20; $size

    = new Imagine\Image\Box(300, 200); $center = new Imagine\Image\Point\Center($size); $canvas = $size->increase($volume); $bg = new Imagine\Image\Color('000000', 100); $color1 = new Imagine\Image\Color('FFEF78'); $color2 = new Imagine\Image\Color('8A834B'); $color3 = new Imagine\Image\Color('8A554B'); $color4 = new Imagine\Image\Color('D94616'); $color5 = new Imagine\Image\Color('FEB48D'); $chart = $imagine->create($canvas, $bg); for ($i = $volume; $i > 0; $i--) { $shift = $center->move($i); $chart->draw() ->pieSlice($shift, $size, -10, 70, $color1->darken(68), true) ->pieSlice($shift, $size, 70, 160, $color2->darken(68), true) ->pieSlice($shift, $size, 160, 170, $color3->darken(68), true) ->pieSlice($shift, $size, 170, 210, $color4->darken(68), true) ->pieSlice($shift, $size, 210, 350, $color5->darken(68), true); } $chart->draw() ->pieSlice($center, $size, -10, 70, $color1, true) ->pieSlice($center, $size, 70, 160, $color2, true) ->pieSlice($center, $size, 160, 170, $color3, true) ->pieSlice($center, $size, 170, 210, $color4, true) ->pieSlice($center, $size, 210, 350, $color5, true); $chart->save('/path/to/chart.png'); draw and save the actual chart Sunday, October 16, 11
47. 47.

    Simplify 1. use value objects 2. make ‘em smart Sunday,

    October 16, 11
48. 48.

    Color <?php $color = new Imagine\Image\Color('000'); $color->lighten(127); $color->dissolve(50); $color->lighten(127)->dissolve(50); $color->getRed()

    $color->getGreen() $color->getBlue() $color->getAlpha() $color->isOpaque() 0 0 0 0 true Sunday, October 16, 11
49. 49.

    Box $box = new Imagine\Image\Box(100, 100); $box->scale(2); $box->increase(25); 100 100

    200 200 125 125 Sunday, October 16, 11
50. 50.

    Point $point = new Imagine\Image\Point(50, 50); Sunday, October 16, 11

51. 51.

    Make it testable 1. interface end user code interactions 2.

    close unexpected inheritance Sunday, October 16, 11
52. 52.

    Filters Sunday, October 16, 11

53. 53.

    Filter <?php namespace Imagine\Filter; use Imagine\Image\ImageInterface; interface FilterInterface { /**

    * Applies scheduled transformation to ImageInterface instance * Returns processed ImageInterface instance * * @param Imagine\Image\ImageInterface $image * * @return Imagine\Image\ImageInterface */ function apply(ImageInterface $image); } Sunday, October 16, 11
54. 54.

    Filters Filter is a collection of manipulations, calculations and other

    operations, that can be applied to an image Sunday, October 16, 11
55. 55.

    Reflection filter <?php class ReflectionFilter implements Imagine\Filter\FilterInterface { private $imagine;

    public function __construct(Imagine\Image\ImagineInterface $imagine) { $this->imagine = $imagine; } public function apply(Imagine\Image\ImageInterface $image) { $size = $image->getSize(); $canvas = new Imagine\Image\Box($size->getWidth(), $size->getHeight() * 2); $reflection = $image->copy() ->flipVertically() ->applyMask($this->getTransparencyMask($size)) ; return $this->imagine->create($canvas, new Imagine\Image\Color('fff', 100)) ->paste($image, new Imagine\Image\Point(0, 0)) ->paste($reflection, new Imagine\Image\Point(0, $size->getHeight())); } private function getTransparencyMask(Imagine\Image\BoxInterface $size) { $white = new Imagine\Image\Color('fff'); $fill = new Imagine\Image\Fill\Gradient\Vertical( $size->getHeight(), $white->darken(127), $white ); return $this->imagine->create($size) ->fill($fill) ; } } Sunday, October 16, 11
56. 56.

    Reflection filter <?php $imagine = new Imagine\Gd\Imagine(); $filter = new

    ReflectionFilter($imagine); $filter->apply($imagine->open('/path/to/google/logo.png')) ->save('/path/to/google/logo/reflection.png'); Sunday, October 16, 11
57. 57.

    Transformation Delayed image processing using a filter Sunday, October 16,

    11
58. 58.

    Transformation operate on a transformation as on a regular image,

    except nothing is being executed <?php $path = '/path/to/processed/image.png'; $size = new Imagine\Image\Box(50, 50); $resize = new Imagine\Image\Box(200, 200); $angle = 90; $background = new Imagine\Image\Color('fff'); $transformation = new Imagine\Filter\Transformation(); $transformation->resize($resize) ->copy() ->rotate($angle, $background) ->thumbnail($size, Imagine\Image\ImageInterface::THUMBNAIL_INSET) ->save($path); Sunday, October 16, 11
59. 59.

    Transformation Apply them when you’re ready <?php $transformation->apply($imagine->open('/path/to/source/image.png')); Sunday, October

    16, 11
60. 60.

    Transformation Or even batch process... <?php foreach(glob('/path/to/many/images/*.png') as $path) {

    $transformation->apply($imagine->open($path)) ->save('/path/to/processed/image/'.md5($path).'.png'); } Sunday, October 16, 11
61. 61.

    Imagine and Symfony2 Sunday, October 16, 11

62. 62.

    Integration 1. configure 2. use in templates 3. profit Sunday,

    October 16, 11
63. 63.

    Configure avalanche_imagine: web_root: %kernel.root_dir%/../web driver: gd filters: preview: type: thumbnail

    options: { size: [100, 50], mode: outbound } Sunday, October 16, 11
64. 64.

    Templates Twig PHP <img src="{{ user.photo|apply_filter('preview') }}" alt="avatar" /> <img

    src="<?php echo $view['imagine']->filter($user->getPhoto(), 'preview') ?>" alt="avatar" /> Sunday, October 16, 11
65. 65.

    Process first request processes image and outputs response other controller

    requests result in a 301 redirect to file <img src="/imagine/preview/users/1/photo.jpg" alt="avatar" /> Sunday, October 16, 11
66. 66.

    Summary Sunday, October 16, 11

67. 67.

    To be improved • advanced operations are still not easy

    (look at the reflection example) • only these drivers are supported • Imagick • GD • Gmagick Sunday, October 16, 11
68. 68.

    Was improved • thumbnails are easy • code is readable

    • foundation is solid • its available today • its gonna be great Sunday, October 16, 11
69. 69.

    What’s next? • Documentation - imagine.readthedocs.org • Implement charting API

    (piecharts, bar-charts, linear graphs) • Add advanced filters (reflection, rounded corners, etc.) • Add effects (twirl, blur, sharpen, etc.) Sunday, October 16, 11
70. 70.

    Imagine image processing reloaded https://github.com/avalanche123/Imagine Sunday, October 16, 11