Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
20181130.pdf
Search
sug1t0m0
December 20, 2018
Technology
0
680
20181130.pdf
sug1t0m0
December 20, 2018
Tweet
Share
More Decks by sug1t0m0
See All by sug1t0m0
ECS+S3でスクレイピングを試してみた
sug1t0m0
0
1k
単純パーセプトロンで遊んでみたかった
sug1t0m0
0
700
渡る世間はナベばかり」でカルタ遊びをしてみての感想(大津の手法で「ナベ」カードを検出してみた)
sug1t0m0
0
850
Other Decks in Technology
See All in Technology
開発者体験を定量的に把握する手法と活用事例
ham0215
0
160
生成AIがローコードツールになる時代の エンジニアの役割を考える
khwada
0
370
DevinでAI AWSエンジニア製造計画 序章 〜CDKを添えて〜/devin-load-to-aws-engineer
tomoki10
0
270
RaspberryPi CM4(CM5も)面白いぞ!
nonnoise
1
280
最近のSRE支援ニーズ考察 | sogaoh's LT @ Road to SRE NEXT@札幌
sogaoh
PRO
1
170
“常に進化する”開発現場へ! SHIFTが語るアジャイルQAの未来/20250306 Yuma Murase
shift_evolve
0
180
社内でKaggle部を作って初学者育成した話
daikon99
1
200
マネコン操作いらず! TerraformでAWSインフラのコーディングに入門しよう
minorun365
PRO
2
560
20250309 無冠のわたし これからどう先生きのこれる?
akiko_pusu
11
1.7k
ライフステージの変化を乗り越える 探索型のキャリア選択
tenshoku_draft
2
390
20250307_エンジニアじゃないけどAzureはじめてみた
ponponmikankan
2
280
OCI IAM Identity Domains Entra IDとの認証連携設定手順 / Identity Domain Federation settings with Entra ID
oracle4engineer
PRO
1
1.4k
Featured
See All Featured
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
49
2.3k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
366
25k
The Straight Up "How To Draw Better" Workshop
denniskardys
232
140k
Measuring & Analyzing Core Web Vitals
bluesmoon
6
270
What's in a price? How to price your products and services
michaelherold
244
12k
Intergalactic Javascript Robots from Outer Space
tanoku
270
27k
Six Lessons from altMBA
skipperchong
27
3.6k
Java REST API Framework Comparison - PWX 2021
mraible
29
8.4k
GraphQLの誤解/rethinking-graphql
sonatard
69
10k
Building a Modern Day E-commerce SEO Strategy
aleyda
38
7.1k
Into the Great Unknown - MozCon
thekraken
35
1.7k
Making Projects Easy
brettharned
116
6.1k
Transcript
͜͜Λ͜͏ͨ͠Β͘ͳͬͨ!! (OpenCVͷαϯϓϧίʔυΛ ίϐϖ͔Γ͍͕ͯͨ͠ ؾ͍ͮͯΑ͔ͬͨͱࢥ͏͜ͱ) Sugiyama.T (@sug1t0m0_agrict) #WaterCell Tech Night #2
Python OpenCVͷجૅ ըૉͷΞΫηε (άάΔͱ͙͢ʹग़ͯ͘Δͭ) • ըૉ͝ͱʹ৭Λऔಘ͢Δ blue = img[10, 20,
0] green = img[10, 20, 1] red = img[10, 20, 2] pixelValue = img[Y࠲ඪ, X࠲ඪ, νϟϯωϧ] • ըૉͷॻ͖͑ img[10, 20, 0] = 255 img[10, 20, 1] = 255 img[10, 20, 2] = 255 img[10, 20] = [255, 255, 255] or
Python OpenCVͷجૅ ըૉͷΞΫηε (NumpyΛ͏ͱ) • img_1ͷըૉ(x,y)͕50Ҏ্ͷͱ͖ img_2ͷըૉ(x,y)ͷΛ52ʹ͍ͨ͠ for y in
range(height): for x in range(weight): if img_1[y, x, 0] >= 50 : img_2[y, x, 0] = 52 ɹɹɹɹɹɹɹɹɹɹɹɹɹͱͬͯ͠·͏ • ͰnumpyΛ͏ͱɺɺɺ cond = img_1 >= 50 img_2[cond] = 52 ɹɹɹɹɹɹɹɹɹɹͰɺ͍͚Δʂ
ͬ͘͟Γ(͔ͳΓదʹ)ൺֱ for y in range(height): for x in range(weight): if
img_1[y, x, 0] >= 50 : img_2[y, x, 0] = 52 • time : 0.779437780380249[sec] cond = img_1 >= 50 img_2[cond] = 52 • time : 0.004307746887207031[sec] • Pythonͷfor͍ • ΠϯλϓϦλͷΦʔόʔϔουʁ • ੩తͳܕఆٛΛ࣋ͨͳ͍͔Βʁ
͜ΕBoolean Indexͱ͍͏ͷΒ͍͠ • numpyͷྻൺֱԋࢉࢠͰܭࢉΛߦ͏ͱਅ ِͷྻʹɺɺɺ • ্هͷਅِͷྻΛ͏͜ͱͰɺըૉͷॻ ͖͕͑ߴʹߦ͑Δɺɺɺ
5 5 ' 5 ' 5 5 5 ' =< 2 img [ ]=2 EW W EW EW 5 5 ' 5 ' 5 5 5 '
To দҪ͞Μ