在vb.net中更改图像大小和分辨率(Windows应用程序) [英] Change Image size and resolution in vb.net (Windows Application)

问题描述

如何在vb.net(Windows应用程序)中更改图像分辨率.

谢谢和问候，
Sivasankaran G

Hi,

How to change the image resolution in vb.net (Windows Application).

Thanks and Regards,
Sivasankaran G

推荐答案

这称为图像重采样.另请参阅我对Abhinav答案的评论.
可以在这里找到一个好的.NET解决方案:
http://stackoverflow.com/questions/249587/high-quality-image-scaling- c-sharp [ ^ ].



回应OP的其他解释要求.

我不知道还有什么要解释的，因为从我所引用的讨论中应该可以清楚地了解到.也许您需要更好地了解重采样的概念.请参阅:
http://en.wikipedia.org/wiki/Resampling_%28bitmap%29 [ ^ ].

-SA

This is called image resampling. Please see also my comment to the answer by Abhinav.
One good .NET solution could be found here:
http://stackoverflow.com/questions/249587/high-quality-image-scaling-c-sharp[^].



In response to OP''s request for additional explanation.

I don''t know what else to explain as it should be clear from the discussion I''ve referenced. Perhaps you need to understand better the concept of resampling. The please see:
http://en.wikipedia.org/wiki/Resampling_%28bitmap%29[^].

—SA

看看TransformedBitmap 裁剪和缩放图像 [

Have a look at the TransformedBitmap class[^].
This would allow you to change the size of your image.

Changing the image resolution is not that easy. Scaling an image will make an image look bigger - but there will be changes in the way it appears. It will appear softer. Cropping and Scaling Images[^] should help you with scaling.

Scaling is based on one of various alogrithms that you could apply.

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