计算像素或计数脊 [英] Count pixels or count ridge

问题描述

大家好，



我在基于生物识别/指纹的项目上工作。

我完成了大部分基于的模块。



但是在最后阶段...自动计算图像中两点之间的指纹脊......绞死我。





我用Java完成了这项工作。但C＃中的问题。

Hello everybody,

I m work on a project based on Biometrics/ Fingerprint.
I completed mostly modules based on.

but at last stage... Auto counting fingerprint ridge between two points from image... hanged me.


I work done this in Java Perfectly.. But problem in C#.

My java code here:

java.util.ArrayList arr = (java.util.ArrayList)getco_ordinate(width, height, x1, y1, x2, y2);
java.awt.Point pp = (java.awt.Point)arr.get(i);
int px = pp.x;
int py = pp.y;
java.awt.image.BufferedImage currentworkingprocessimage;
getARGBPixelData(currentworkingprocessimage.getRGB(px, py));

/*method*/
public void getARGBPixelData(int pixel)
{
java.lang.String pixelARGBData = "";
a = pixel >> 24 & 0xff;
r = pixel >> 16 & 0xff;
g = pixel >> 8 & 0xff;
b = pixel & 0xff;
}

every thing ok but problem line is : 
"java.awt.image.BufferedImage currentworkingprocessimage;
getARGBPixelData(currentworkingprocessimage.getRGB(px, py));"

there r no getRGB method in System.Drawing.Bitmap or System.Windows.Media.BitmapImage

any option doing this

请帮忙..



提前感谢



我尝试过：



i已尝试但结果为null ...

please help..

thanks in advance

What I have tried:

i have tried but result null...

推荐答案

在 System.Drawing.Bitmap 有一个 GetPixel（x，y）方法，它返回 System.Drawing.Color 值。

Color有 ToArgb 和 FromArgb 和 ToString 应该为y服务的方法我们的需求。



注意： GetPixel（x，y）方法非常慢。请参阅谢尔盖的解决方案3讨论 [ ^ ]

In System.Drawing.Bitmap there is a GetPixel(x,y) method that returns a System.Drawing.Color value.
The Color has ToArgb and FromArgb and ToString methods which should serve your needs.

NOTE: the GetPixel(x,y) method is exceedingly slow. See Sergey's Solution 3 discussion here[^]

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