是否可以使用RMagick获得平均图像颜色？ [英] Is it possible to get the average image color with RMagick?

问题描述

当我将图像上传到Ruby on Rails应用程序时，我需要知道图像的平均颜色。是否可以在HEX或RGB中获得平均颜色值，以便稍后在将要显示此图像的视图中使用此颜色？

I need to know the average color from an image when I upload it to my Ruby on Rails application. Is it possible to get the average color value in HEX or in RGB to use this color later in the view that's going to display this image?

类似于：

img =  Magick::Image.read(path).first
hexVal = img.getHexValue

推荐答案

将图像大小调整为一个像素并获得其颜色？

Resize the image to one pixel and get its color?

img =  Magick::Image.read(path).first
pix = img.scale(1, 1)
averageColor = pix.pixel_color(0,0)

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