imagecolorclosestalphaimagecolorclosesthwb
(PHP 4 >= 4.0.1, PHP 5)
imagecolorclosesthwb — 取得与给定颜色最接近的色度的黑白色的索引
说明
int imagecolorclosesthwb
( resource $image
, int $red
, int $green
, int $blue
)
Warning
本函数暂无文档，仅有参数列表。
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