Monday, 15 March 2010

image - How many gray levels Matlab can show? -



image - How many gray levels Matlab can show? -

let's have matrix image of uint16.

where each pixel can range 0 65535.

if display image imshow(image) how many levels of grayness matlab render?

the standard 255 levels (thus implicitly converting image uint8)? (please note know can alter colormap, know number of grayness levels )

the size of colormap tells how many colors (or grayness levels, in case) matlab trying display.

numgraylevels = size(get(gcf,'colormap'),1)

note monitors back upwards 8-bits of gray. , depending on quality , calibration of display may seeing far less that.

image matlab image-processing

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