Visual Basic 6从GIF到JPG或TIF的图像转换 [英] Visual Basic 6 Image conversion from GIF to JPG or TIF

问题描述

语言Visual Basic 6。

Language Visual Basic 6.

我想知道是否有开源或现有的Microsoft Image库，
允许我转换GIF （8位深度）图像为以下任一项：JPG，TIF。

I want to know if there is an open source or existing Microsoft Image library that will allow me to convert a GIF (8 Bit Depth) image to either one of the following: JPG, TIF.

我目前正在使用Imaging for Windows V2.7 API。我最近才发现它不支持所有GIF类型的图像。

I am currently using Imaging for Windows V2.7 API. I only found recently it does't support all the GIF type images.

我发现99％的GIF图像都没有问题。请注意，图像没有损坏，我可以使用其他成像工具打开它。

I found that 99% of the GIF images get processed with no issue. Please note that the image is not broken and I am able to open it with a other imaging tool.

谢谢。

推荐答案

ImageMagick 是一款出色的免费开源图像处理软件包。您可以从VB6中使用 OLE（ActiveX）控件。我自己从未尝试过 - 我总是使用ImageMagick命令行。我知道控件只需要正常的命令行。

ImageMagick is an excellent free open source image manipulation package. There is an OLE (ActiveX) control which you could use from VB6. I've never tried it myself - I always use the ImageMagick command line. I understand the control just takes the normal command lines anyway.

转换命令就是这样的。

convert my.gif my.jpg

编辑：ImageMagick是根据GPL许可的：如果您使用该控件并重新分发您的程序，那么您的程序可能必须是免费的开源程序。 显然尚未经过合法测试，是否动态链接到GPL库或控件是否会调用GPL。你总是可以启动ImageMagick命令行，这对我来说应该是安全的[我不是律师]。

ImageMagick is licensed under the GPL: if you use the control and redistribute your program, it's possible your program would have to be free open-source. Apparently it's not yet been legally tested whether dynamic linking to a GPL library or control invokes the GPL. You could always launch the ImageMagick command-line which to me should be safe [I am not a lawyer].

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