imagecolorclosesthwb

(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)

警告

该函数目前尚无参考文档；仅参数列表可用。

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