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Home/ Questions/Q 6684337
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Editorial Team
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Editorial Team
Asked: May 26, 20262026-05-26T04:55:42+00:00 2026-05-26T04:55:42+00:00

i have an image named imageA…imageA has some portion colored black. now i want

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i have an image named imageA…imageA has some portion colored black.
now i want to replace this Black portion of the imageA with the pixels of imageB , in such a way that location of portion is same in other image.

like if the position of black pixel in imageA=(10,15) , than this black pixel should be replaced with the pixel at the location (10,15) in imageB .

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  1. Editorial Team
    Editorial Team
    2026-05-26T04:55:43+00:00Added an answer on May 26, 2026 at 4:55 am

    Use Logical Indexing.

    zeropixels = imageA == 0
    imageA(zeropixels) = imageB(zeropixels)
    

    You might need some extra error checking code to ensure that the logical matrix zeropixels is valid for indexing imageB.

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