imagecolorat
imagecolorclosestalpha
GD Funkcje
PHP Manual

# imagecolorclosest

(PHP 4, PHP 5)

imagecolorclosest — Get the index of the closest color to the specified color

### Opis

int imagecolorclosest ( resource `$image` , int `$red` , int `$green` , int `$blue` )

Returns the index of the color in the palette of the image which is "closest" to the specified RGB value.

The "distance" between the desired color and each color in the palette is calculated as if the RGB values represented points in three-dimensional space.

If you created the image from a file, only colors used in the image are resolved. Colors present only in the pallete are not resolved.

### Parametry

`obraz`

  Zasób obrazu, zwrócony przez jedną z funkcji tworzących obrazy, taką jak imagecreatetruecolor().

`red`

  Value of red component

`green`

  Value of green component

`blue`

  Value of blue component

The colors parameters are integers between 0 and 255 or hexadecimals between 0x00 and 0xFF.

### Zwracane wartości

Returns the index of the closest color, in the palette of the image, to the specified one

### Patrz także

- imagecolorexact()

imagecolorat
imagecolorclosestalpha
GD Funkcje
PHP Manual