cv2.rectangle 颜色设定

cv2.rectangle的颜色设定是通过一个包含三个整数值的元组来表示，分别代表蓝色（Blue）、绿色（Green）和红色（Red）的颜色通道值。通常情况下，这些值的范围是0到255，其中0表示该颜色通道的最小亮度（暗色），255表示该颜色通道的最大亮度（亮色）。因此，(255, 0, 255)代表的颜色是紫色。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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