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How to display output image from 'Regionprops'?

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Fahmi Akmal Dzulkifli
Fahmi Akmal Dzulkifli ，2022-7-30
评论： Fahmi Akmal Dzulkifli ，2022-7-30
Greetings, I have a code like shown as below:
img = imread('I.jpg'); % this image in grayscale
c = 1;
BW = img > 0;
BW = bwareaopen(BW,50);
s = regionprops(BW,img,{'Centroid','MeanIntensity','PixelValues'});
numObj = numel(s);
for k = 1:numObj
s(k).Gamma = round((2.6593.*(s(k).MeanIntensity)+0.3137),1);
s(k).Output = c*(s(k).PixelValues.^s(k).Gamma);
end
I want to ask is there any possible way to display the new image obtained from the s(k).Output?
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Fahmi Akmal Dzulkifli
Fahmi Akmal Dzulkifli 2022-7-30
Alright Sir. Thank you for the response. Later I will try it

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采纳的回答

Atsushi Ueno
Atsushi Ueno 2022-7-30
Ran in:
> I want to ask is there any possible way to display the new image obtained from the s(k).Output?
You can write only a continuum area in the source image as below. Get 'PixelIdxList' with regionprops function.
img = imread('coins.png'); % this image in grayscale
c = 1;
BW = img > 127; % I have changed the threshold value for coins.png
BW = bwareaopen(BW,50);
s = regionprops(BW,img,{'Centroid','MeanIntensity','PixelValues','PixelIdxList'}); % add PixelIdxList
numObj = numel(s);
for k = 1:numObj
s(k).Gamma = round((2.6593.*(s(k).MeanIntensity)+0.3137),1);
s(k).Output = c*(s(k).PixelValues.^round(s(k).Gamma)); % gamma is rounded to avoid error
img(s(k).PixelIdxList) = s(k).Output;
end
imshow(img)

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