绘制与拜耳图像的问题。 [英] Drawing issue with bayer image.

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问题描述

大家好。



我有关于绘制拜耳形象的问题。



我会解释因为我无法附上图片文件。



创建查看器程序时出现问题。



Mono和Color图像没有问题,但Bayer图像(如RG,GB图案)有​​问题。



当我放大拜耳图像时,我可以在查看器程序中看到新模式。

(实际上,原始数据中没有模式。)



这种模式看起来像十字架或棋盘格。



有人告诉我,这个问题与'奈奎斯特 - 香农采样定理','走样'有关。



但是......我怎么能解决这个问题呢?



我用CImage和GDI函数编程。

(例如StrechBlt)



请告诉我。



谢谢。



我的尝试:



我试图绘制GDI和GDI +。

并使用OpenCV。

但是......我无法解决它。

Hi all.

I have a question about Drawing Bayer image.

I will explain it because I can't attach a picture file.

There was a problem when I create the viewer program.

There is no problem with Mono and Color images but Bayer image(like RG, GB pattern) has a problem.

When I zoom in the Bayer image, I can see the new pattern on the viewer program.
(Actually, there is no pattern in raw data.)

This pattern looks like a cross or a checkerboard.

Someone told me, this issue related to 'Nyquist-Shannon sampling theorem', 'aliasing'.

But... How can I solve this issue?

I programmed with CImage and GDI function.
(e.g. StrechBlt)

Please advise me.

Thank you.

What I have tried:

I tried to draw GDI and GDI+.
And use OpenCV.
But... I couldn't solve it.

推荐答案

查看我的库: Plain C重新取样DLL [ ^ ]。


别名在图像处理中始终存在问题。当你将一个休息图像(因子至少是最大变焦)绘制到一个记忆图像然后从该图像绘制缩放区域时,你应该解决这个问题。 (我想你的原始数据是矢量数据)



另外看一下优秀的图像文章 CxImage 提供了一个很好的洞察力和大量的示例代码。



最后的哈克将是你在上面绘制图像你自己的,通过绘制圆圈,线条和文字。很多工作,但有可能。
Aliasing is always a problem in image processing. You should solve that, when you draw a hugh image (factor is at least maximal zoom) into a memory image and then paint the zoomed area from this image. (I guess your raw data is vector data)

Take also a look at the outstanding image article CxImage which provide a hugh insight and a lot of sample code.

Last Hack would be that you draw the image on your own, by drawing circles, lines and text. A lot of work, but it is possible.


这篇关于绘制与拜耳图像的问题。的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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