如何创建png图像的镜像? [英] How to Create a png image's mirror?

问题描述

如您所知，png可以透明显示.我想像自己一样在mirror.vertical或水平显示png.

有些身体可以帮助我吗? TKS:)

As you know,the png can display with the transparent.I want to display a png like itself in mirror.vertical or horizontal.

some body can help me? TKS :)

推荐答案

您可以尝试执行以下步骤:):

-获取图像的位图位指针
-获取位图的高度和宽度
-获取位图的每像素位(BPP)值
-在行或列上对称交换像素(sizeof(pixel)= BPP/8)
-保存修改后的图像

您可以访问CImage类吗? :)

You could try to perform the following steps :) :

- Get the bitmap bits pointer of the image
- Get the height and width of the bitmap
- Get the bits-per-pixel ( BPP ) value of the bitmap
- Swap the pixels ( sizeof(pixel)=BPP/8 ) symmetrically on the lines or the columns
- Save the modified image

Do you have an access to the CImage class ? :)

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