image-manipulation

I'm learning and practicing my Imagick skills. I have issues with outlined text using Imagick stroke. I would like to achieve an effect visible on this image: a popular Internet meme: Here's the code I have so far: $draw = new \ImagickDraw(); $outputImage = new \Imagick('meme.jpg'); $draw->setFillColor('#fff'); $draw->setFont('impact.ttf'); $draw->setFontSize(40); $draw->setGravity(\Imagick::GRAVITY_NORTH); $draw->setStrokeColor('#000'); $draw->setStrokeWidth(1); $draw->setStrokeAntialias(true); $draw->setTextAntialias(true); $outputImage->annotateImage($draw, 0, 5, 0, 'Sample text');

I have a picture of document taken from camera. Now what i have to do is crop only document from that image . Please can anyone suggest me how best it can be done or first is it possible or not Edit For more information .. my next question How to get edge coordinates of a image? If you know the area that contains the image data you would like to crop, you could use this article from MSDN: http://msdn.microsoft.com/en-us/library/ms752345.aspx If you need to find the relevant area before cropping, you need to investigate some image processing techniques. e.g. Corner Detection In the assumption

I'm developing a user-interface for positioning an image on a google map. I started from : http://overlay-tiler.googlecode.com/svn/trunk/upload.html which is pretty close to what I want. But instead of 3 contact points I want a rotate tool, a scale tool and a translate tool (the later exists). I tried to add a rotate tool but it doesn't work as I expected : I put a dot on the left bottom corner that control the rotation (around the center of the image). The mouse drag the control dot and I calculate the 3 others points. My code is based on the mover object but I changed the onMouseMove

I'm working on processing .raw image files, but I'm not sure how the image is being stored. Each pixel is a unsigned 16-bit value, with typical values ranging from 0 to about 1000 (in integer form). This isnt enough bits for hex values, and its not RGB (0-255) so I'm not quite sure what it is. Bonus: if you have any idea on how to convert this to grayscale in OpenCV (or just mathematically) that would be a huge help too. The name RAW comes from the fact that the values stored in the file are not pixel RGB values, but the raw values that were measured from the camera itself. The values have

I have an image that is 240x320 (iphone camera image in portrait), and I need to programmatically (in C#) add white "bars" to the sides increasing the full image size to 320x320. I don't want to scale the image because that would mess up the aspect ratio. I have found a lot of info about how to remove white bars with c#, but nothing about how to add them. I am at a loss. Does anyone have any input that might lead me the correct direction? Thanks a bunch, Brett munissor using (System.Drawing.Image src = System.Drawing.Image.FromFile("picture.jpg")) { using (Bitmap bmp = new Bitmap(320, 320)) {

I have a collection of objects which describe an image-name, its size and it's X/Y location. The collection is sorted by "layers", so I can composite the images in a sort of painter's algorithm. From this, I can determine the rectangle necessary to hold all of the images, so now what I want to do is: Create some sort of buffer to hold the result (The NS equivalent of what iPhoneOS calls UIGraphicsContext.) Draw all the images into the buffer. Snag a new NSImage out of the composited result of the buffer. In iPhoneOS, this is the code that does what I want: UIGraphicsBeginImageContext (woSize);

I want to cut the the specific portion of the the picture and use it to compare the cropped image with another stored in the HDD. The problem is that I don't know how to get a specific section of the source image. I know the location (X,Y) of the image to be cropped. This will load the original and create a cropped version starting at (0,0) and with dimensions of 64x64. Bitmap original = new Bitmap( @"C:\SomePath" ); Rectangle srcRect = new Rectangle( 0, 0, 64, 64 ); Bitmap cropped = (Bitmap)original.Clone( srcRect, original.PixelFormat ); BTW, you don't specify if this is WinForms or WPF, so