| gdfx.c | |
| Functions | |
| gdImageStringFTCircle | |
| gdImageSquareToCircle | |
| gdImageSharpen | Sharpen function added on 2003-11-19 by Paul Troughton (paul<dot>troughton<at>ieee<dot>org) Simple 3x3 convolution kernel Makes use of seperability Faster, but less flexible, than full-blown unsharp masking pct is sharpening percentage, and can be greater than 100 Silently does nothing to non-truecolor images Silently does nothing for pct<0, as not a useful blurring function Leaves transparency/alpha-channel untouched |
void gdImageSharpen ( gdImagePtr im, int pct )
Sharpen function added on 2003-11-19 by Paul Troughton (paul<dot>troughton<at>ieee<dot>org) Simple 3x3 convolution kernel Makes use of seperability Faster, but less flexible, than full-blown unsharp masking pct is sharpening percentage, and can be greater than 100 Silently does nothing to non-truecolor images Silently does nothing for pct<0, as not a useful blurring function Leaves transparency/alpha-channel untouched
char * gdImageStringFTCircle ( gdImagePtr im, int cx, int cy, double radius, double textRadius, double fillPortion, char * font, double points, char * top, char * bottom, int fgcolor )
gdImagePtr gdImageSquareToCircle ( gdImagePtr im, int radius )
Sharpen function added on 2003-11-19 by Paul Troughton (paul<dot>troughton<at>ieee<dot>org) Simple 3x3 convolution kernel Makes use of seperability Faster, but less flexible, than full-blown unsharp masking pct is sharpening percentage, and can be greater than 100 Silently does nothing to non-truecolor images Silently does nothing for pct<0, as not a useful blurring function Leaves transparency/alpha-channel untouched
void gdImageSharpen ( gdImagePtr im, int pct )