when i recombined bit plane image after histogram equalization,it is completely white not visible, can anyone tell me why, i try this code, please help me
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why my reconstruct image is white can anyone tell me i try this code
input = imread('input.jpg');
input_gray = rgb2gray(input);
bit_1 = bitget(input_gray,1);
bit_2 = bitget(input_gray,2);
histeq_1 = histeq(bit_1);
histeq_2 = histeq(bit_2);
reconstruct_image = zeros(size(input_gray));
reconstruct_image = uint8(reconstruct_image);
reconstruct_image = bitset(reconstruct_image,1,histeq_1);
reconstruct_image = bitset(reconstruct_image,2,histeq_2);
figure,imshow(reconstruct_image,[]),title('reconstruct image');
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Image Analyst
am 10 Dez. 2013
It makes absolutely no sense to do histogram equalization on a binary image.
12 Kommentare
Image Analyst
am 16 Dez. 2013
It's just common sense so I'm not going to try to find a paper that mentions it. Everybody knows this. The narrow the histogram, the more uniform the image and the wider it is, the more dynamic range and contrast you'll have. It would be like trying to find a paper that says if the mean of a histogram is higher then the intensity is higher - it's just common sense.
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