Method
VipsImagehist_find
Declaration [src]
int
vips_hist_find (
VipsImage* in,
VipsImage** out,
...
)
Description [src]
Find the histogram of in. Find the histogram for band band (producing a
one-band histogram), or for all bands (producing an n-band histogram) if
band is -1.
char and uchar images are cast to uchar before histogramming, all other image types are cast to ushort.
::: tip “Optional arguments”
* band: gint, band to equalise
::: seealso
vips_hist_find_ndim(), vips_hist_find_indexed().
Parameters
out |
VipsImage |
Output image. |
|
| The argument will be set by the function. | |
| The instance takes ownership of the data, and is responsible for freeing it. | |
... |
none |
|