Question
how to plot histogram of a single image data. But it's not clear to me how the data in a stack can be plotted. For exmaple, f = "Test_Image.tiff"; img_data = imfinfo(f); imhist(img_data) double, uint8, int8, logical, uint16, int16, single, uint32, int32 Instead its type was struct. Any suggestions?
Expert Answer
Neeta Dsouza
PhD Expert
Answered Aug 12, 2026
iminfo just read the metadata of the image. Use imread() to read the image as matrix
f = "Test_Image.tiff"; img_data = imread(f); imhist(img_data)
If it is an rgb image, then first convert it to grayscale too
f = "Test_Image.tiff"; img_data = rgb2gray(imread(f)); imhist(img_data)
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