I see extra quantization when displaying a grayscale uint8 image. For example:

inRamp = uint8 ( round ( repmat( linspace(0,60,1200), 600, 1 ) ) );
imshow ( inRamp)
imwrite ( inRamp, ‘inputRamp.tif’ )

If I display this tif image in another display application, I see a series of steps. The image displayed in MATLAB using imshow has a couple of steps that are double-wide and double-deep. I have verified this using Windows screen captures of the image as displayed by other software and as displayed in MATLAB.
The plots of this data show a clear stairstep pattern, with the MATLAB showing a couple of steps (near pixel value 10 and 40) that are double width and double height. I can email plots to anyone interested in seeing them.I see extra quantization when displaying a grayscale uint8 image. For example:

inRamp = uint8 ( round ( repmat( linspace(0,60,1200), 600, 1 ) ) );
imshow ( inRamp)
imwrite ( inRamp, ‘inputRamp.tif’ )

If I display this tif image in another display application, I see a series of steps. The image displayed in MATLAB using imshow has a couple of steps that are double-wide and double-deep. I have verified this using Windows screen captures of the image as displayed by other software and as displayed in MATLAB.
The plots of this data show a clear stairstep pattern, with the MATLAB showing a couple of steps (near pixel value 10 and 40) that are double width and double height. I can email plots to anyone interested in seeing them. I see extra quantization when displaying a grayscale uint8 image. For example:

inRamp = uint8 ( round ( repmat( linspace(0,60,1200), 600, 1 ) ) );
imshow ( inRamp)
imwrite ( inRamp, ‘inputRamp.tif’ )

If I display this tif image in another display application, I see a series of steps. The image displayed in MATLAB using imshow has a couple of steps that are double-wide and double-deep. I have verified this using Windows screen captures of the image as displayed by other software and as displayed in MATLAB.
The plots of this data show a clear stairstep pattern, with the MATLAB showing a couple of steps (near pixel value 10 and 40) that are double width and double height. I can email plots to anyone interested in seeing them. image, uint8, display, imshow MATLAB Answers — New Questions

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