How do I compare two images & recognize the pattern in an image irrespective of its size and pattern size, and using .Net C#? Also, which algorithms are used for doing so from Image Processing? ...
Hi, i am searching for a smart solution for this problem: A cancer ct picture is stored inside a unsigned short array (1-dimensional). I have the location information of the cancer region inside the picture, but the coordinates (x,y) are in superpixel (128x128 unsigned short). My task is to highlight this region. I already solved th...
I'm looking for an image editor that I can embed easily into an ASP.NET website. I need to be able to draw rectangles, lines and add some text. Additionally, images must not be uploaded to third-party servers. I've checked sites of the main ISVs that develop .NET controls but none of them provides a standalone image editor that offers a...
Consider the following dialog with the command-line interface to the kernel: $ math Mathematica 6.0 for Linux x86 (32-bit) In[1]:= p = Plot[x^2, {x,-1,1}] Out[1]= -Graphics- In[2]:= Export["foo.png", p] Out[2]= foo.png That works fine on a machine with $Version = 6.0 for Linux x86 (32-bit) (June 2, 2008) but fails on a machine with ...
I have a site that enables users to upload images which are then re-sized into 4 different sizes. I'm moving to a new host and I wondered what makes a good spec for handling this task - or should any server spec be able to handle this task. Should I look at more RAM or a better CPU etc... Images are currently restricted to 2mb but I'd ...
Hello all, I'm trying to install the Python Imaging Library 1.1.6 for Python 2.6. After downloading the installation executable (Win XP), I receive the following error message: "Application failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem" Any thoughts on what I hav...
I am working on a program which manipulates images of different sizes. Many of these manipulations read pixel data from an input and write to a separate output (e.g. blur). This is done on a per-pixel basis. Such image mapulations are very stressful on the CPU. I would like to use multithreading to speed things up. How would I do th...
Hi, I am trying to write my first real python function that does something real. What i want to accomplish is searching a given folder, and then open all images and merging them together so they make a filmstrip image. Imagine 5 images stacked on top of eachother in one image. I have this code now, which should be pretty much ok, but pr...
Sometimes two image files may be different on a file level, but a human would consider them perceptively identical. Given that, now suppose you have a huge database of images, and you wish to know if a human would think some image X is present in the database or not. If all images had a perceptive hash / fingerprint, then one could hash ...
I need a tool to automatically convert simple HTML into an image. I will be controlling the HTML input which will consist of simple text formatting tags and possibly image links--I don't need to be able to render arbitrary HTML. Is there a simple way to do this? I've looked at the HTML layout engines like Gecko and Webkit, but frankly ...
How do I segment a 2D image into blobs of similar values efficiently? The given input is a n array of integer, which includes hue for non-gray pixels and brightness of gray pixels. I am writing a virtual mobile robot using Java, and I am using segmentation to analyze the map and also the image from the camera. This is a well-known probl...
I have a 2D area with "dots" distributed on this area. I now am trying to detect "clusters" of dots, that is, areas with a certain high density of dots. Any thoughts on (or links to articles with thoughts on) how to elegantly detect these areas? ...
Hi, How can I write a semi transparent text on an Image (Jpg,Bmp), or a transparent text (color as same background Image) but with a shadow, something I want to do to watermark the images. I want to accomplish that using Delphi win32. ...
I am rendering a certain scene to an off-screen frame buffer (FBO) and then I'm reading the rendered image using glReadPixels() for processing on the CPU. The processing involves some very simple scanning routines and extraction of data. After profiling I realized that most of what my application does is spend time in glReadPixels() -...
I'm curious as to what type of experiences people have had with libgd. I am looking for an alternative to GDI+ (something faster). I have tried ImageMagick, but can't get the performance out of it i need. I have heard that ligd is fast, but less feature rich, and that ImageMagick is slow, but more feature rich. I only need very simple ...
Have created a c++ implementation of the Hough transform for detecting lines in images. Found lines are represented using rho, theta, as described on wikipedia: "The parameter r represents the distance between the line and the origin, while θ is the angle of the vector from the origin to this closest point " How can i find the inte...
Hey, I am interested in studying some image processing. I imagine matlab is the best way to go about that but right now I don't have access to matlab. I tried octave but for some reason it can't even load a png, bmp or anything other than 1 specific format. R doesn't seem to be the key here either. What is the language of choice here? P...
I need to resize jpg images with Python without losing the original image's EXIF data (metadata about date taken, camera model etc.). All google searches about python and images point to the PIL library which I'm currently using, but doesn't seem to be able to retain the metadata. The code I have so far (using PIL) is this: img = Image....
Is it even possible? Can you load more than one image and have them displayed in more than one window? ...
Has anyone had any luck getting the Camellia computer vision library to install on OS X? I've been banging my head against a wall trying to get it to install. There is only one reference I can find online and it is a bit dated. I've followed the instructions to the T with no luck. I'm hoping one of your brilliant folks on SO can help a ...