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BUILT-IN MATHEMATICA SYMBOL
ImageSubtract[image, x]
subtracts a constant amount x from each channel value in image.
ImageSubtract[image1, image2]
gives an image in which each pixel is obtained by subtracting the values of the corresponding pixels in 
and 
.
Details
- The image returned by ImageSubtract[image, ...] has the same dimensions as image.
- If the image dimensions are different, ImageSubtract[image1, image2] subtracts
from the center of 
. - If
or 
is a single-channel image, its values are subtracted from the values in each channel of the other image in ImageAdd[image1, image2]. - If
and 
are both multichannel images, the values in each channel are subtracted separately. - In ImageSubtract[image, x], the number x is normally in the range 0 to 1.
- ImageSubtract[image, x] gives an image with the same underlying data type as image, clipping or truncating values if necessary.
- In ImageSubtract[image, x], x can be a number, a color, or a list of color channel values.
- ImageSubtract[image1, image2] gives an image with the largest type of either
or 
, clipping or truncating values if necessary. - ImageSubtract works with Image3D objects.
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