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Bitmap image wrongly inverted

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Andrew Davis
Andrew Davis 2017-3-17
回答： Image Analyst 2017-3-17
Hi all,
I am reading a black and white bitmap (.bmp) image using
imread('filepath');
However, for this certain image the picture comes through as the complement of itself. i.e. the colours/intensities are inverted. I have tried using
imread('filepath', 'bmp');
as well.
Any ideas? I have attached the image in question, along with the output that is given.
Thanks

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采纳的回答

Thorsten
Thorsten 2017-3-17
[I, map] = imread('../../Downloads/scene_l.bmp');
imshow(I, map)
J = ind2rgb(I, map); % convert to non-indexed image
imshow(J)

更多回答（1 个）

Image Analyst
Image Analyst 2017-3-17
Subtract it from 255:
grayImage = uint8(255) - invertedGrayImage;

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