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Image Processing v2.1

BTW to convert from the byte[] back to an image is simple enough private Bitmap ConvertBitmap(byte[] frame, int width, int height) { Bitmap bmp = new Bitmap( width, height, PixelFormat.Format24bppRgb); BitmapData data = bmp.LockBits( new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.WriteOnly...

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 09-17-2007
Image Processing v2

I was tearing into v1.5 of Microsoft Robotics Studio ( http://www.microsoft.com/robotics ) and came across a novel way to process the pixels in an image. In previous posts I was using unmanaged C# code and pointers to move around the image. This worked well but is hard to manage. They take the approach...

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 09-17-2007
Tampa Code Camp Robot Vision Presentation

Here is the powerpoint for my presentation tomorrow. http://www.onetug.org/DNN/Portals/0/member_files/2007_07_14_robot.ppt

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 07-13-2007
Bounding Box

In my earlier post I put together an image processing class ( http://drowningintechnicaldebt.com/blogs/shawnweisfeld/archive/2006/11/06/Bitmap-Processing-in-C_2300_.aspx ). I needed a method that built a bounding box around a given shape. Here is the code: public static void BoundingBox(Bitmap b, ref...

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 05-14-2007
Center of Mass

In my earlier post I put together an image processing class ( http://drowningintechnicaldebt.com/blogs/shawnweisfeld/archive/2006/11/06/Bitmap-Processing-in-C_2300_.aspx ). I needed a method that found the center of a given mass of pixels. Here is the code: public static Point CenterOfMass(Bitmap b)...

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 05-14-2007
Remove Background

In my earlier post I put together an image processing class ( http://drowningintechnicaldebt.com/blogs/shawnweisfeld/archive/2006/11/06/Bitmap-Processing-in-C_2300_.aspx ). I needed a method that did some segmentation based on a given color. It needed to take in the color and a threshold and it would...

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 05-14-2007
Stack Based Flood Fill Algorithm

For a recent project I needed a Flood Fill Algorithm (see Flood Fill in Wikipedia, http://en.wikipedia.org/wiki/Flood_fill ). Here is my implementation in C++. Some things to note 1) I am using the ImagerBitmapClass from a previous post ( http://drowningintechnicaldebt.com/blogs/shawnweisfeld/archive...

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 12-04-2006
Bitmap Processing in C#

Need to crack a bitmap and dittle around with its pixels? I know there is a managed get pixel property on the bitmap object but that is SLOW if you have to work with a lot of pixels. After some digging around I have compiled a few examples together to make my ImagerBitmap Class. The class uses unmanaged...

Posted to Shawn Weisfeld [MVP] (Weblog) by sweisfeld on 11-06-2006

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