how to convert the binarized image to the original gray image

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Dear all, Hello good morning,
Could you please share your experience how to convert the binarized image to the original image with gray vlaues? THank all.

Accepted Answer

Walter Roberson
Walter Roberson on 21 May 2016
You probably want
maskedImage = binaryImage .* originalImage;
  3 Comments
Image Analyst
Image Analyst on 22 May 2016
For the future, this operation is called "masking", not "converting" of a binary image to a gray scale image. If original image is an integer, you need to cast binary image to the same class of integer, like
maskedImage = uint8(binaryImage) .* originalImage;
Or initialize and then use the binary image as indexes:
maskedImage = originalImage; % Initialize
maskedImage(~binaryImage) = 0; % Mask

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More Answers (1)

Image Analyst
Image Analyst on 21 May 2016
Try this:
binaryImage = grayImage;
Your (formerly) binary image will now be converted into the same array as your gray scale image, so it's now a gray scale image, not a binary image anymore.

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