vision.AlphaBlender is a very good function that can do a lot of "image matting", but when I encounter a large image size, the speed is very slow, look forward to the official enhancement of the efficiency of this function.
blender = vision.AlphaBlender(‘Operation’,’Binary Mask’,…
‘MaskSource’,’Input port’);

% big image test performance
HH = [8000,500];
WW = [8000,500];
for i = 1:length(HH)
H = HH(i);
W = WW(i);

bottomImg = zeros(H,W,3,’single’);

topImg = rand(H,W,3,’single’);
maskImg = zeros(H,W,’logical’);
maskImg(1:100,1:100)=1;

t1 = tic;
outImg = blender(bottomImg,topImg,maskImg);
t2 = toc(t1);
fprintf(‘image size:(%d*%d) take time: %.3f secondsn’,H,W,t2)
endvision.AlphaBlender is a very good function that can do a lot of "image matting", but when I encounter a large image size, the speed is very slow, look forward to the official enhancement of the efficiency of this function.
blender = vision.AlphaBlender(‘Operation’,’Binary Mask’,…
‘MaskSource’,’Input port’);

% big image test performance
HH = [8000,500];
WW = [8000,500];
for i = 1:length(HH)
H = HH(i);
W = WW(i);

bottomImg = zeros(H,W,3,’single’);

topImg = rand(H,W,3,’single’);
maskImg = zeros(H,W,’logical’);
maskImg(1:100,1:100)=1;

t1 = tic;
outImg = blender(bottomImg,topImg,maskImg);
t2 = toc(t1);
fprintf(‘image size:(%d*%d) take time: %.3f secondsn’,H,W,t2)
end vision.AlphaBlender is a very good function that can do a lot of "image matting", but when I encounter a large image size, the speed is very slow, look forward to the official enhancement of the efficiency of this function.
blender = vision.AlphaBlender(‘Operation’,’Binary Mask’,…
‘MaskSource’,’Input port’);

% big image test performance
HH = [8000,500];
WW = [8000,500];
for i = 1:length(HH)
H = HH(i);
W = WW(i);

bottomImg = zeros(H,W,3,’single’);

topImg = rand(H,W,3,’single’);
maskImg = zeros(H,W,’logical’);
maskImg(1:100,1:100)=1;

t1 = tic;
outImg = blender(bottomImg,topImg,maskImg);
t2 = toc(t1);
fprintf(‘image size:(%d*%d) take time: %.3f secondsn’,H,W,t2)
end vision.alphablender, image processing MATLAB Answers — New Questions

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