改变彩色图像的阴影。线程中的示例。 [闪; AS3] [英] Changing the shade of color images. Example in thread. [Flash; as3]

问题描述

我试着用ColorTransform来做到这一点，但它改变了透明像素： http://savepic.su/2068100建议如何快速改变图像中色彩的色调并保存透明像素。

解决方案

您可以使用 ColorMatrixFilter ，它对每个像素的 [R，G，B，A]执行矩阵变换。 / code> vector。

例如，添加 25 。每个像素的绿色成分乘以 0.8

  var filter：* = new ColorMatrixFilter（[
 1.2,0,0,0,25，
 0,0.8,0,0,0，
 0,0,0,0,0 
 0，0，0，1，0 
]）; 
  

如果您想要执行实际的色相转换构造一个矩阵，围绕 [1,1,1] 旋转 [R，G，B] >矢量。但是我猜测这比你之后的更多。

I try to do this with ColorTransform, but it changes the transparent pixels: http://savepic.su/2068100.png

Advise how to quickly change the hue of colors in the image and save the transparent pixels.

解决方案

You can use ColorMatrixFilter instead, which performs a matrix transform on each pixel's [R, G, B, A] vector.

For example, the following filter multiplies each pixel's red component by 1.2 and adds 25. Each pixel's green component is multiplied by 0.8.

var filter:* = new ColorMatrixFilter( [
    1.2, 0  , 0  , 0, 25,
    0  , 0.8, 0  , 0,  0,
    0  , 0  , 1  , 0,  0,
    0  , 0  , 0  , 1,  0
] );

If you want to do an actual hue shift, you'll have to construct a matrix that rotates the [R, G, B] 3D vector around the [1, 1, 1] vector. But I'm guessing that's more involved than what you're after.

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