imagecolorclosestalpha
PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8
imagecolorclosestalpha - Get the index of the closest color to the specified color + alpha
Manual
imagecolorclosestalpha(
GdImage$image,
int$red,
int$green,
int$blue,
int$alpha ): int
Returns the index of the color in the palette of the image which is "closest" to the specified RGB value and alpha level.
Parameters
- image
A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.
- red
-
Value of red component.
- green
-
Value of green component.
- blue
-
Value of blue component.
- alpha
-
A value between 0 and 127. 0 indicates completely opaque while 127 indicates completely transparent.
Return Values
Returns the index of the closest color in the palette.