colors - 如何使用 ColorMatrix 工具反转图像的颜色？

Question

我必须在矩阵中输入什么值？

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _
{New Single() {¿?, 0, 0, 0, 0}, _
 New Single() {0, ¿?, 0, 0, 0}, _
 New Single() {0, 0, ¿?, 0, 0}, _
 New Single() {0, 0, 0, ¿?, 0}, _
 New Single() {0, 0, 0, 0, ¿?})

Answer 1

虽然我不确定你的颜色矩阵的特定版本是如何工作的，如果你的像素值在 0-255 或 0-1 范围内，那么它应该如何工作：

如果您的像素范围是 0-255：

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _ {New Single() {-1, 0, 0, 0, 255}, _ New Single() {0, -1, 0, 0, 255}, _ New Single() {0, 0, -1, 0, 255}, _ New Single() {0, 0, 0, 1, 0}, _ New Single() {0, 0, 0, 0, 1})

如果是 0-1：

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _ {New Single() {-1, 0, 0, 0, 1}, _ New Single() {0, -1, 0, 0, 1}, _ New Single() {0, 0, -1, 0, 1}, _ New Single() {0, 0, 0, 1, 0}, _ New Single() {0, 0, 0, 0, 1})