PHP Dokumentation: Function ps-open-image
12. Januar 2010 von werner
ps_open_image
(PECL ps >= 1.1.0)
ps_open_image — Reads an image for later placement
Beschreibung
Reads an image which is already available in memory. The parameter source is currently not evaluated and assumed to be memory. The image data is a sequence of pixels starting in th upper left corner and ending in the lower right corner. Each pixel consists of components color components, and each component has bpc bits.
Parameter-Liste
- psdoc
Resource identifier of the postscript file as returned by ps_new().
- type
The type of the image. Possible values are png, jpeg, or eps.
- source
Not used.
- data
The image data.
- length
The length of the image data.
- width
The width of the image.
- height
The height of the image.
- components
The number of components for each pixel. This can be 1 (gray scale images), 3 (rgb images), or 4 (cmyk, rgba images).
- bpc
Number of bits per component (quite often 8).
- params
Rückgabewerte
Returns identifier of image or zero in case of an error. The identifier is a positive number greater than 0.
Siehe auch
- ps_open_image_file() – Opens image from file
- ps_place_image() – Places image on the page
- ps_close_image() – Closes image and frees memory
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