Method
VipsImagescale
Declaration [src]
int
vips_scale (
VipsImage* in,
VipsImage** out,
...
)
Description [src]
Optional arguments:
log: log scale pixelsexp: exponent for log scale
Search the image for the maximum and minimum value, then return the image as unsigned 8-bit, scaled so that the maximum value is 255 and the minimum is zero.
If log is set, transform with log10(1.0 + pow(x, exp)) + .5,
then scale so max == 255. By default, exp is 0.25.
See also: vips_cast().
| This method is not directly available to language bindings. |
Parameters
out |
VipsImage |
Output image. |
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| The argument will be set by the function. | |
| The instance takes ownership of the data, and is responsible for freeing it. | |
... |
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