imagecolorclosest

(PHP 4, PHP 5)

imagecolorclosest — ｻﾘﾄ熙ｷ､ｿｿｧ､ﾋｺﾇ､筝皃､ｿｧ､ﾎ･､･ﾇ･ﾃ･ｯ･ｹ､霹ﾀ､ｹ､�

ﾀ篶ﾀ

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

ｻﾘﾄ熙ｷ､ｿ RGB ﾃﾍ､ﾋ｡ﾖｶ皃､｡ﾗｲ霖�ﾑ･�ﾃ･ﾈﾃ讀ﾎｿｧ､ﾎ･､･ﾇ･ﾃ･ｯ･ｹ､ﾖ､ｷ､ﾞ､ｹ｡｣

ｻﾘﾄ熙ｷ､ｿｿｧ､ﾈ･ﾑ･�ﾃ･ﾈｾ螟ﾎｳﾆｿｧ､ﾎ｡ﾖｵ･｡ﾗ､ﾏ｡｢ RGB ﾃﾍ､ｬｻｰｼ｡ｸｵｶﾖｾ螟ﾎﾅﾀ､ﾎｺﾂﾉｸ､ｽ､ｹ､ﾈｹﾍ､ｨ､ﾆｷﾗｻｻ､ｷ､ﾞ､ｹ｡｣

ｲ霖�ﾕ･｡･､･�ｫ､鮗鋿ｮ､ｷ､ｿｾ�遉ﾏ｡｢ｲ霖�筅ﾇｻﾈ､��ﾆ､､､�ｧ､ﾀ､ｱ､隍ｷ､ﾞ､ｹ｡｣･ﾑ･�ﾃ･ﾈ､ﾋ､ﾀ､ｱﾂｸｺﾟ､ｹ､�ｧ､ﾏｲ隍ｵ､�ﾞ､ｻ､｣

･ﾑ･鬣癸ｼ･ｿ

image: imagecreatetruecolor() ､ﾎ､隍ｦ､ﾊｲ霖�鋿ｮｴﾘｿｬﾊﾖ､ｹｲ霖��ｽ｡ｼ･ｹ｡｣
red: ﾀﾖ･ｳ･ﾝ｡ｼ･ﾍ･ﾈ､ﾎﾃﾍ｡｣
green: ﾎﾐ･ｳ･ﾝ｡ｼ･ﾍ･ﾈ､ﾎﾃﾍ｡｣
blue: ﾀﾄ･ｳ･ﾝ｡ｼ･ﾍ･ﾈ､ﾎﾃﾍ｡｣

ｿｧ､ﾎ･ﾑ･鬣癸ｼ･ｿ､ﾏ｡｢0 ､ｫ､� 255 ､ﾞ､ﾇ､ﾎﾀｰｿﾍ､ｫ 0x00 ､ｫ､� 0xFF ､ﾞ､ﾇ､ﾎｽｽﾏｻｿﾊﾃﾍ､ﾘﾄ熙ｷ､ﾞ､ｹ｡｣

ﾊﾖ､�ﾍ

ｲ霖�ﾑ･�ﾃ･ﾈﾆ筅ﾇ｡｢ｻﾘﾄ熙ｷ､ｿｿｧ､ﾋ､､､ﾁ､ﾐ､皃､ｿｧ､ﾎ･､･ﾇ･ﾃ･ｯ･ｹ､ﾖ､ｷ､ﾞ､ｹ｡｣

ﾎ�

ﾎ�1 ｲ霖�筅ﾇ､ﾎｿｧ･ｻ･ﾃ･ﾈ､ﾎｸ｡ｺ�


<?php
// ｲ霖�鋿ｮ､ｷ｡｢･ﾑ･�ﾃ･ﾈｲ霖�ﾋﾊﾑｴｹ､ｷ､ﾞ､ｹ
$im = imagecreatefrompng('figures/imagecolorclosest.png');
imagetruecolortopalette($im, false, 255);

// ﾃｵ､ｷ､ｿ､､ｿｧ (RGB)
$colors = array(
    array(254, 145, 154),
    array(153, 145, 188),
    array(153, 90, 145),
    array(255, 137, 92)
);

// ､ｽ､�ｾ､�｡ｺｷ｡｢･ﾑ･�ﾃ･ﾈﾆ筅ﾇ､筅ﾃ､ﾈ､筝皃､ｿｧ､ｫ､ﾄ､ｱ､ﾞ､ｹ
// ｸ｡ｺﾖｹ譯｢ｸ｡ｺｷ､ｿ RGB｡｢､ｽ､ｷ､ﾆｸｫ､ﾄ､ｫ､ﾃ､ｿ RGB ､ﾖ､ｷ､ﾞ､ｹ
foreach($colors as $id => $rgb)
{
    $result = imagecolorclosest($im, $rgb[0], $rgb[1], $rgb[2]);
    $result = imagecolorsforindex($im, $result);
    $result = "({$result['red']}, {$result['green']}, {$result['blue']})";

    echo "#$id: Search ($rgb[0], $rgb[1], $rgb[2]); Closest match: $result.\n";
}

imagedestroy($im);
?>

ｾ螟ﾎﾎ网ﾎｽﾐﾎﾏ､ﾏ｡｢､ｿ､ﾈ､ｨ､ﾐｰﾊｲｼ､ﾎ､隍ｦ､ﾋ､ﾊ､熙ﾞ､ｹ｡｣

#0: Search (254, 145, 154); Closest match: (252, 150, 148).
#1: Search (153, 145, 188); Closest match: (148, 150, 196).
#2: Search (153, 90, 145); Closest match: (148, 90, 156).
#3: Search (255, 137, 92); Closest match: (252, 150, 92).

ｻｲｹﾍ

imagecolorexact() - ｻﾘﾄ熙ｷ､ｿｿｧ､ﾎ･､･ﾇ･ﾃ･ｯ･ｹ､霹ﾀ､ｹ､�
imagecolorclosestalpha() - ｻﾘﾄ熙ｷ､ｿｿｧ+･｢･�ﾕ･｡ﾃﾍ､ﾋｺﾇ､筝皃､ｿｧ､ﾎ･､･ﾇ･ﾃ･ｯ･ｹ､霹ﾀ､ｹ､�
imagecolorclosesthwb() - ｿｧｹ遉､｡｢ﾇ｢ｹｭ､ｹ､�ｧ､ﾎ･､･ﾇ･ﾃ･ｯ･ｹ､ﾀ､�