how to convert unit8 type images to logical type

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neha viswanath
neha viswanath 2015-2-16
评论： neha viswanath 2015-2-17
if true
myFolder = 'E:\\inverted\\i1';
for PicNum = 100:-1:1;
fullFileName = fullfile(myFolder,sprintf('%d.bmp',PicNum));
fprintf(1, 'Now reading %s\n', fullFileName);
imageArray{PicNum}=imread(fullFileName);
logical(imageArray{PicNum});//here im trying to convert my images to logical but its not happening
imshow(imageArray{PicNum}); % Display image.
end
end

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采纳的回答

Image Analyst
Image Analyst 2015-2-16
To convert a gray level image to a logical binary image you must threshold:
binaryImage = grayImage > someValue;
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neha viswanath
neha viswanath 2015-2-17
sir,I need to access each image in cell array.
if true
for i=1:1:100
feature_extractor(logicalImage{i});
end
end
so i could get features of all the images in 'ans'.with the above code i could not accomplish my task.can you please help me out.

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更多回答（1 个）

Adam
Adam 2015-2-16
编辑：Adam 2015-2-16
imageArrayLogical = cellfun( @(im) logical(im), imageArray, 'UniformOutput', false );
or you can just do it in a for loop if you prefer. Note the result is still a cell array of your data so you still have to index into it using cell notation.

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