Function Macro

VipsMATRIX

Declaration [src] 

#define VIPS_MATRIX (
  I,
  X,
  Y
)

Description [src]

This macro returns a pointer to a pixel in an image, cast to a double*. The image must have a single band, be VIPS_FORMAT_DOUBLE and be fully available in memory, so memory buffers and small mapped images only.

If VIPS_DEBUG is defined, you get a version that checks bounds and image type for you.

See also

vips_image_wio_input(), vips_image_inplace(), vips_check_matrix().

This function is not directly available to language bindings.

Parameters

I

Type: -

A VipsImage.

X

Type: -

X coordinate.

Y

Type: -

Y coordinate.