如何创建一个.jpeg图像 [英] How to create a .jpeg image

问题描述

我们知道，我们可以通过将bitmap类用作
在vb中创建位图图像
Dim bmp =位图(像素宽度"，像素高度"，像素格式)

但是当我保存此位图时，它会占用更多空间.
每当我将其转换为Jpeg(作为bmp.save("aa.jpg"，Jpeg))并保存后，.bmp的原始数据都会丢失.

我想创建一个jpeg文件，就像我们使用上面的"dim bmp ...."命令创建了一个bmp文件一样.
并将文件另存为jpg

任何人都可以通过指定像素的高度和宽度来帮助我创建jpeg文件吗?

PLZ 请帮助我... :(

[虽然没有C#；从标签中删除]

As we know that we can create an bitmap image in vb by using the bitmap class as

Dim bmp = bitmap("Pixel Width","Pixel Height",Pixel Format)

But while I save this bitmap it takes more space .
When ever I convert it to Jpeg (as bmp.save("aa.jpg",Jpeg)) and save it the original datas of .bmp are lost.

I want to create a jpeg file just as we have created a bmp file using the "dim bmp...." command above
and save the file as jpg

Can any one help me to create a jpeg file by specifying the pixel height and width .

PLZ Please help me... :(

[No c# though; removed from the tags]

推荐答案

Google"vb.net创建jpg文件"，并且在超过180万个结果中的第二个列表是此链接:

http://www.vbaccelerator.com/codelib/gfx/vbjpeg.htm [ ^ ]

Google "vb.net create jpg file", and the 2nd listing in the more than 1.8 MILLION results is this link:

http://www.vbaccelerator.com/codelib/gfx/vbjpeg.htm[^]

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