-Image *monochrome();
-Image *zoom();
-
-void compress();
-
-Pixmap XImage_to_Pixmap(Display *, Window, XImageInfo *);
-XImageInfo *Image_to_XImage(Display *, int, Visual *, unsigned int, Image *);
-void XImage_to_Drawable(XImageInfo *, int, int, int, int,
- unsigned int, unsigned int);