测量影像 [英] Measuring An Image

问题描述

我试图做一个Windows应用程序来测量并在图片框Ex中显示并显示上载图像的色相，饱和度，噪声比值(％). jpeg，lzw，小波图像.
如何在vb.net中测量给定图像的那些特性?

谢谢，
Raja.S

Hi,
I''m trying to do a windows application to measure and show the hue, saturation, noise ratio values(in %) of a uploaded image in picture box Ex. jpeg, lzw, wavelet images.
How to get measure those properities of a given image in vb.net?

Thanks,
Raja.S

推荐答案

此处的CP文章 [< ^ ].

您可以将本文用作使用任何语言编写代码的参考.

CP article here [^].

You can use this article as a reference to write code in whatever language you are using.

色相和饱和度是一种简单的计算方法，但是像在C#中一样，使用代码的速度更快图像处理文章，而不是使用VB，因为它不允许指针，因此无法进行图像处理.

噪声比是一种图像处理任务，也最适合C#dll.

测量图像-您是指以像素为单位进行测量吗?您可以使用DPI将像素转换为英寸，但是不一定等于屏幕上的英寸(实际上，它不会)，并且在不知道图像比例的情况下也无法进行其他测量，甚至然后，您可以测量图像中的内容，而不是屏幕上的大小.测量任意线是简单的三角法.

Hue and saturation are a simple calculation, but it''s quicker to use code like in my C# image processing articles, than to use VB, which cannot do image processing because it does not allow pointers.

Noise ratios are an image processing task also best suited to a C# dll.

Measuring an image - do you mean measuring in pixels ? You can use DPI to convert pixels to inches, but that won''t necessarily equate to inches on screen ( in fact, it plain won''t ), and no other measurement is possible without knowing the scale of the image, and even then, you can measure what is in the image, not the on screen size. To measure arbitrary lines is simple trigenometry.

多谢您的回覆.所有现有的方法都可以增加或减少色相，饱和度，噪声比的值.但是我的要求是我应该显示那些现有值而不影响图像.输入应该是图像，输出只能是在％中提到的三个值.

谢谢，

拉贾(Raja Soosai)

Hi
Thanks for your kind response. All exiting method can increase or decrease the values of hue, saturation, noise ratio. But my requirement is i should show those exiting values without affecting the image. The input should be an image and output is only those mentioned three values in %.

Thanks,

Raja Soosai

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