mapping image using pixel values

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Imran Riaz 2022-8-1

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https://ww2.mathworks.cn/matlabcentral/answers/1771850-mapping-image-using-pixel-values

回答： DGM 2024-1-8

I have finger image; after cropping and masking I have now masked image. And there is the black area which shows no information; my task is to remapp the image into new pixel values image which have only information.

How can I do using matlab?

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Walter Roberson 2022-8-1

What should be displayed in the area that is currently black ?

Image Analyst 2022-8-1

You have pixels with information in them. The black pixels can be ignored. There is no need to crop them off or replace them with anything. It's just not necessary for whatever you want to do next. Besides, it's not possible to have a matrix with "ragged" edges - it must remain rectangular.

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