Method

VipsImageppmsave

Declaration [src]

int
vips_ppmsave (
  VipsImage* in,
  const char* filename,
  ...
)

Description [src]

Write a VIPS image to a file as PPM.

It can write 1, 8, 16 or 32 bit unsigned integer images, float images, colour or monochrome, stored as binary or ASCII. Integer images of more than 8 bits can only be stored in ASCII.

When writing float (PFM) images the scale factor is set from the “pfm-scale” metadata.

Set ascii to TRUE to write as human-readable ASCII. Normally data is written in binary.

Set bitdepth to 1 to write a one-bit image.

format defaults to the sub-type for this filename suffix.

::: tip “Optional arguments” * format: VipsForeignPpmFormat, format to save in * ascii: gboolean, save as ASCII rather than binary * bitdepth: gint, bitdepth to save at

::: seealso vips_image_write_to_file().

Parameters

`filename`	`const char*`
	File to write to.
	The data is owned by the caller of the function.
	The string is a NUL terminated UTF-8 string.
`...`	`none`
	`NULL`-terminated list of optional named arguments.

Return value

Returns:	`int`
	0 on success, -1 on error.