get grayImage from bitImage

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Elysi Cochin
Elysi Cochin on 17 Feb 2019
Answered: Image Analyst on 17 Feb 2019
% Compute mean in 4-by-4 blocks
kernel = ones(4);
meanImage = conv2(double(grayImage), kernel, 'same') / numel(kernel);
% Compare actual image to mean image.
bitImage = grayImage >= meanImage;
From the bitImage is it possible to get back grayImage

Accepted Answer

Image Analyst
Image Analyst on 17 Feb 2019
No. There is no way to obtain the original gray level image from a binary image that has been created by thresholding that gray scale image. If you want the gray scale image later, be sure to save your gray scale image variable.

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