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  • Separating text and graphics in an image

    - by avd
    I dont know whether should I post this question here or not? But if someone knows it, please answer? What are the algorithms for determining which region in an image is text and which one is graphic? Means how to separate such regions? (figure or diagram)

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  • image processing project.......................

    - by user358886
    i have got a project to differentiate between fake currency and real currency using image processing but i am having no notion about my project neither i am getting any type of support from my mentor.and i am really frusted about my project.if any one know any thing then let me know...

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  • CSS / HTML - Image will not show up

    - by weka
    Ugh, ok. I've been up all night working this thing and now an image won't show. It's so darn annoying. Trying to get this .png image to show up on a simple PHP webpage. I just wanna go to sleep X_X CSS: <style> .achievement { position:relative; width:500px; background:#B5B5B5; float:left; padding:10px; margin-bottom:10px; } .icon { float:left; width:32px; height:32px; background: url("images/trophy.php") no-repeat center; padding:05px; border:4px solid #4D4D4D; } .ptsgained { position:absolute; top:0; right:0; background:#79E310; color:#fff; font-family:Tahoma; font-weight:bold; font-size:12px; padding:5px; } .achievement h1 { color:#454545; font-size:12pt; font-family:Georgia; font-weight:none; margin:0;padding:0; } .achievement p { margin:0;padding:0; font-size:12px; font-family:Tahoma; color:#1C1C1C; } .text { margin-left:10px; float:left; } </style> HTML: <div class="achievement"> <span class="ptsgained">+10</span> <div class="icon"></div> <div class="text"><h1>All Around Submitter</h1> <p>Submit and have approved content in all 6 areas.</p> </div> </div> What am I doing wrong, guys? :\

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  • Get image data in Javascript?

    - by detariael
    I have a regular HTML page with some images (just regular IMG HTML tags). I'd like to get their content, base64 encoded preferably, without the need to redownload the image (ie. it's already loaded by the browser, so now I want the content). I'd love to achieve that with Greasemonkey and Firefox.

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  • image processing problem

    - by riyana
    i'm working on detecting shape of any object.i've a binary image where background is white pixels and foreground/object is black pixel. now i need to detect the shape of the area where there are black pixels.how can i do it?the shape may be of a man/car/box etc. plz help

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  • image processing

    - by sam
    hi folks, i have some images..if these images are selected then it should generate another image which is the combination of all the selected images.. can anyone suggest as how to start with? thanks

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  • Java or C for image processing

    - by its-me
    I am looking in to learning a programming language (take a course) for image analysis and processing. Possibly Bioinformatics too. Which language should I go for? C or Java? Other languages are not an option for me. Also please explain why either of the languages is a better option for my application.

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  • Scaling an image using the mouse in a WinForms application?

    - by Gaax
    I'm trying to use the position of the mouse to calculate the scaling factor for scaling an image. Basically, the further you get away from the center of the image, the bigger it gets; and the closer to the center you get, the smaller it gets. I have some code so far but it's acting really strange and I have absolutely no more ideas. First I'll let you know, one thing I was trying to do is average out 5 distances to get a more smooth resize animation. Here's my code: private void pictureBoxScale_MouseMove(object sender, MouseEventArgs e) { if (rotateScaleMode && isDraggingToScale) { // For Scaling int sourceWidth = pictureBox1.Image.Width; int sourceHeight = pictureBox1.Image.Height; float dCurrCent = 0; // distance between the current mouse pos and the center of the image float dPrevCent = 0; // distance between the previous mouse pos and the center of the image System.Drawing.Point imgCenter = new System.Drawing.Point(); imgCenter.X = pictureBox1.Location.X + (sourceWidth / 2); imgCenter.Y = pictureBox1.Location.Y + (sourceHeight / 2); // Calculating the distance between the current mouse location and the center of the image dCurrCent = (float)Math.Sqrt(Math.Pow(e.X - imgCenter.X, 2) + Math.Pow(e.Y - imgCenter.Y, 2)); // Calculating the distance between the previous mouse location and the center of the image dPrevCent = (float)Math.Sqrt(Math.Pow(prevMouseLoc.X - imgCenter.X, 2) + Math.Pow(prevMouseLoc.Y - imgCenter.Y, 2)); if (smoothScaleCount < 5) { dCurrCentSmooth[smoothScaleCount] = dCurrCent; dPrevCentSmooth[smoothScaleCount] = dPrevCent; } if (smoothScaleCount == 4) { float currCentSum = 0; float prevCentSum = 0; for (int i = 0; i < 4; i++) { currCentSum += dCurrCentSmooth[i]; } for (int i = 0; i < 4; i++) { prevCentSum += dPrevCentSmooth[i]; } float scaleAvg = (currCentSum / 5) / (prevCentSum / 5); int destWidth = (int)(sourceWidth * scaleAvg); int destHeight = (int)(sourceHeight * scaleAvg); // If statement is for limiting the size of the image if (destWidth > (currentRotatedImage.Width / 2) && destWidth < (currentRotatedImage.Width * 3) && destHeight > (currentRotatedImage.Height / 2) && destWidth < (currentRotatedImage.Width * 3)) { AForge.Imaging.Filters.ResizeBilinear resizeFilter = new AForge.Imaging.Filters.ResizeBilinear(destWidth, destHeight); pictureBox1.Image = resizeFilter.Apply((Bitmap)currentRotatedImage); pictureBox1.Size = pictureBox1.Image.Size; pictureBox1.Refresh(); } smoothScaleCount = -1; } prevMouseLoc = e.Location; currentScaledImage = pictureBox1.Image; smoothScaleCount++; } }

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  • Java.lang.NullPointerException when using retreived Image (Unless method is used statically!)

    - by Emdiesse
    Hi there, This has been doing my head in all day and I have finally decided to resort to asking for help! In my MIDLet I have an instance of the java class ImageFetcher called anImg. Also within my MIDLet I have a command that simply say's fetch, a CommandListener that when detects fetch was clicked runs the function below. This function should simply run public getImage() from the anImg instance of class ImageFetcher which returns an image and then appends/sets this Image onto the form on the display. (You may recognise the getImage() function from the Nokia JavaME Wiki!!!) Instead of any image being displayed this is written to the output terminal in netbeans: Msg: Java.lang.NullPointerException HOWEVER, If I change public getImage() to public static getImage() and replace anImg.getImage() with ImageFetcher.getImage() the image is successfully displayed!!! Thank you for your replies on this issue :) I look forward to going my hair back after this ordeal! FetchImageApp.java ... ... ... private doThis(){ try { Image im; if ((im = anImg.getImage()) != null) { ImageItem ii = new ImageItem(null, im, ImageItem.LAYOUT_DEFAULT, null); // If there is already an image, set (replace) it if (form.size() != 0) { form.set(0, ii); } else // Append the image to the empty form { form.append(ii); } } else { form.append("Unsuccessful download."); } // Display the form with the image display.setCurrent(form); } catch (Exception e) { System.err.println("Msg: " + e.toString()); } } ... ... ... ImageFetcher.java ... ... ... /*-------------------------------------------------- * Open connection and download png into a byte array. *-------------------------------------------------*/ public Image getImage() throws IOException { String url = "http://kenai.com/attachments/wiki_images/chessgame/java-duke-logo.png"; ContentConnection connection = (ContentConnection) Connector.open(url); // * There is a bug in MIDP 1.0.3 in which read() sometimes returns // an invalid length. To work around this, I have changed the // stream to DataInputStream and called readFully() instead of read() // InputStream iStrm = connection.openInputStream(); DataInputStream iStrm = connection.openDataInputStream(); ByteArrayOutputStream bStrm = null; Image im = null; try { // ContentConnection includes a length method byte imageData[]; int length = (int) connection.getLength(); if (length != -1) { imageData = new byte[length]; // Read the png into an array // iStrm.read(imageData); iStrm.readFully(imageData); } else // Length not available... { bStrm = new ByteArrayOutputStream(); int ch; while ((ch = iStrm.read()) != -1) { bStrm.write(ch); } imageData = bStrm.toByteArray(); bStrm.close(); } // Create the image from the byte array im = Image.createImage(imageData, 0, imageData.length); } finally { // Clean up if (iStrm != null) { iStrm.close(); } if (connection != null) { connection.close(); } if (bStrm != null) { bStrm.close(); } } return (im == null ? null : im); } ... ... ...

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  • Make a WPF circular progress indicator / loading animation

    how to make a WPF circular progress indicator that resembles Silverlights loading animation  read moreBy Michael DetrasDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • SSIS Design Pattern: Loading Variable-Length Rows

    - by andyleonard
    Introduction I encounter flat file sources with variable-length rows on occassion. Here, I supply one SSIS Design Pattern for loading them. What's a Variable-Length Row Flat File? Great question - let's start with a definition. A variable-length row flat file is a text source of some flavor - comma-separated values (CSV), tab-delimited file (TDF), or even fixed-length, positional-, or ordinal-based (where the location of the data on the row defines its field). The major difference between a "normal"...(read more)

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  • Tuesday 6th Manchester SQL User Group - Chris Testa-O'Neil (Loading a datawarehouse using SSIS) and

    - by tonyrogerson
    Chris will give a talk on Loading a datawarehouse using SQL Server Integration Services, Tony Rogerson will give a talk on Database Design: Normalisation/Denormalisation and using Surrogate Keys - practicalities/pitfalls and benefits in Microsoft SQL Server. Registration is essential which you can do here: http://sqlserverfaq.com?eid=218 . Come and join us for an evening of SQL Server discussion, as well as the two formal sessions by Chris Testa-O'Neil and Tony Rogerson there will be a chance...(read more)

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  • "exception at 0x53C227FF (msvcr110d.dll)" with SOIL library

    - by Sean M.
    I'm creating a game in C++ using OpenGL, and decided to go with the SOIL library for image loading, as I have used it in the past to great effect. The problem is, in my newest game, trying to load an image with SOIL throws the following runtime error: This error points to this part: // SOIL.c int query_NPOT_capability( void ) { /* check for the capability */ if( has_NPOT_capability == SOIL_CAPABILITY_UNKNOWN ) { /* we haven't yet checked for the capability, do so */ if( (NULL == strstr( (char const*)glGetString( GL_EXTENSIONS ), "GL_ARB_texture_non_power_of_two" ) ) ) //############ it points here ############// { /* not there, flag the failure */ has_NPOT_capability = SOIL_CAPABILITY_NONE; } else { /* it's there! */ has_NPOT_capability = SOIL_CAPABILITY_PRESENT; } } /* let the user know if we can do non-power-of-two textures or not */ return has_NPOT_capability; } Since it points to the line where SOIL tries to access the OpenGL extensions, I think that for some reason SOIL is trying to load the texture before an OpenGL context is created. The problem is, I've gone through the entire solution, and there is only one place where SOIL has to load a texture, and it happens long after the OpenGL context is created. This is the part where it loads the texture... //Init glfw if (!glfwInit()) { fprintf(stderr, "GLFW Initialization has failed!\n"); exit(EXIT_FAILURE); } printf("GLFW Initialized.\n"); //Process the command line arguments processCmdArgs(argc, argv); //Create the window glfwWindowHint(GLFW_SAMPLES, g_aaSamples); glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2); g_mainWindow = glfwCreateWindow(g_screenWidth, g_screenHeight, "Voxel Shipyard", g_fullScreen ? glfwGetPrimaryMonitor() : nullptr, nullptr); if (!g_mainWindow) { fprintf(stderr, "Could not create GLFW window!\n"); closeOGL(); exit(EXIT_FAILURE); } glfwMakeContextCurrent(g_mainWindow); printf("Window and OpenGL rendering context created.\n"); //Create the internal rendering components prepareScreen(); //Init glew glewExperimental = GL_TRUE; int err = glewInit(); if (err != GLEW_OK) { fprintf(stderr, "GLEW initialization failed!\n"); fprintf(stderr, "%s\n", glewGetErrorString(err)); closeOGL(); exit(EXIT_FAILURE); } printf("GLEW initialized.\n"); <-- Sucessfully creates an OpenGL context //Initialize the app g_app = new App(); g_app->PreInit(); g_app->Init(); g_app->PostInit(); <-- Loads the texture (after the context is created) ...and debug printing to the console CONFIRMS that the OpenGL context was created before the texture loading was attempted. So my question is if anyone is familiar with this specific error, or knows if there is a specific instance as to why SOIL would think OpenGL isn't initialized yet.

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  • Dynamically loading Assemblies to reduce Runtime Dependencies

    - by Rick Strahl
    Using a static language like C# tends to work with hard assembly bindings for everything. But what if you want only want to provide an assembly optionally, if the functionality is actually used by the user? In this article I discuss a scenario where dynamic loading and activation made sense for me and show the code required to activate and use components loaded at runtime using Reflection and dynamic in combination.

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  • error while loading shared libraries, file too short

    - by tommyk
    From one of my customers I got an application. When I try to run it I got following error error while loading shared libraries: ./libvtkWidgets.so.5.4: file too short In my project structure I see following: -rwxrwxrwx 1 tomasz tomasz 20 2011-02-01 10:44 libvtkWidgets.so -rwxrwxrwx 1 tomasz tomasz 22 2011-02-01 10:44 libvtkWidgets.so.5.4 -rwxrwxrwx 1 tomasz tomasz 2147103 2011-02-01 10:44 libvtkWidgets.so.5.4.2 Is my shared library libvtkWidgets corrupted ? How to solve that error ?

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  • Learning PostgreSql: bulk loading data

    - by Alexander Kuznetsov
    In this post we shall start loading data in bulk. For better performance of inserts, we shall load data into a table without constraints and indexes. This sounds familiar. There is a bulk copy utility, and it is very easy to invoke from C#. The following code feeds the output from a T-SQL stored procedure into a PostgreSql table: using ( var pgTableTarget = new PgTableTarget ( PgConnString , "Data.MyPgTable" , GetColumns ())) using ( var conn = new SqlConnection ( connectionString )) { conn.Open...(read more)

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  • Please allow us to cancel loading of log in SQL Server Management Studio Log Viewer

    - by simonsabin
    The log viewer in management studio is really neat, however if you have large log files or are accessing a remote server over a slow connection it can take a long time to load the log records. Generally you only need the last x records, so you don’t need to load all the records. It would be great to have a cancel button to allow us to cancel the loading of the log records in SQL Server Management Studio. As an aside one of the best features in SQL 2005 was the ability to cancel your connection attempt...(read more)

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