perfmance: "imageDatastore" low performance when specifying multiple file names directly

2 ビュー (過去 30 日間)
cui,xingxing
cui,xingxing 2022 年 12 月 6 日
編集済み: cui,xingxing 2022 年 12 月 6 日
Very low performance when specifying multiple image full path names for a given imageDatastore,see benchmark below.
env: matlab 2022b, win10
imgsDir = "someImgDir";
imgNames = imgsDir+"/"+string(0:2687)+".jpg";% The more images you have, the lower the performance
t1 = tic;
for i = 1:10
imds = imageDatastore(imgNames); % low
end
t = toc(t1)
t2 = tic;
for i = 1:10
imds = imageDatastore(imgsDir); % high
end
t = toc(t2)
t =
14.0975
t =
0.5759
Initially I wanted to sort the files in the ImageDatastore by Arabic arrays, but found the above to be a real performance problem, any better suggestions?

回答 (0 件)

カテゴリ

Help Center および File ExchangeComputer Vision Toolbox についてさらに検索

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by