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  • UIButton: Need a circle hit area

    - by Pavan
    Ok I have 6 custom UIButtons. Their normal state image are all circles images. They are all spaced out equally but all the circles touch each other. The problem with the custom UIbutton (which has a circle image on it), is that the hit area of that button is square, and the corners of this square overlaps the hitarea of the other custom button's hitarea. How do i make the hit area of a UIbutton whos normal state has a circle image, be only clickable on that circle only, rather than the normal square hit area?! I hope that someone can find a way for me to solve this problem that i currently am having! Thanks in advance Pavan

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  • Outlook body background no-repeat

    - by kylex
    I am sending an Email in HTML format geared toward outlook 2007/2010. I applied a background image to body tag but it does not work. Code as below: <body style="background-image: url('http://example.com/bg.jpg'); background-repeat: no-repeat; background-position:top center;"> However if I change the "no-repeat" to "repeat-y no-repeat", it shows the background image but it repeats. Can anyone help me with this?

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  • Question on multi-probe Local Sensitive Hashing

    - by Yijinsei
    Hey guys sorry to be asking this kind noob question, but because I really need some guidance on how to use Multi probe LSH pretty urgently, so I did not do much research myself. I realize there is a lib call LSHKIT available that implemented that algorithm, but I have trouble trying to figure out how to use it. Right now, I have a few thousand feature vector 296 dimension, each representing an image. The vector is used to query an user input image, to retrieve the most similar image. The method I used to derive the distance between vector is euclidean distance. I know this might be a rather noob question, but do you guys have knowledge on how should i implement multi probe LSH? I am really very grateful to any answer or response.

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  • Spectral Reconstruction

    - by Hani
    I have a small system which consist of: Led Clusters, camera(RGB or grayscale) and an object to be detected. I am emitting a light from the LED clusters (ex: yellow). After emitting light on the object, I am capturing an image for the object from the camera. I want to get the spectral image of the object from the captured image. Please if any one knows the algorithm or a code for this purpose(grayscale or RGB camera), tell me. Thanks.....

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  • speech bubbles like in comics for iphone

    - by plspl
    I am new to iphone application development. I am building an iphone app where the user needs to be able to add speech bubbles (think comics) over existing images. I have some questions on how to implement this, Have an empty speech bubble image and overlay it over existing image - Do I use a separate UIImage for the speech bubble? Or should I draw the speech bubble myself? Allow the user to move the speech bubble using touch- Any pointers or examples would be great! Also let him resize the speech depending on the amount of text - Any pointers or examples would be great! Finally he should be able to add text to speech bubble - Is there a way to add textbox over an existing image? Thanks,

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  • Actionscript 2.0, load images into array

    - by incrediman
    I need to load an external image into an array. Let's say the image is http://sstatic.net/so/img/logo.png I'm using AS2 - I do not have the option of using AS3. Any idea what to do? I'm able to load the image just fine into a movieclip in _root (below), but not into an array. var loader:MovieClipLoader = new MovieClipLoader(); loader.loadClip("http://sstatic.net/so/img/logo.png",_root.mcOnTheStage); Like is there some way to make an array ov MC's that I can load the images into?

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  • php gdlib angle problem

    - by creativz
    I'm using php gd lib 5.2.13 and tried to make a picture with imagettftext ($image, $color and $font are defined of course). imagettftext($image, 12, 90, 10, 20, $black, $font, "This.is_a test 123"); //image, font size, angle, x value, y value, color, font, text As you can see I want the angle to be 90°. The problem is that the text is not beeing rotated properly, e.g. the dots are at the top (and not at the bottom) of the text. I read that this is a common issue and has been fixed in php gdlib 5.3, But since I have 5.2.13 running on a webhost (...) is there a solution to rotate it properly with using gdlib 5.2.13? Thanks!

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  • How to add dimensions to dynamic img elements

    - by Mohammad
    I use a Json call to get a list of image addresses, then I add them individually to a div like this. <div id="container"> <img src="A.jpg" alt="" /> <img src="B.jpg" alt="" /> ... </div> Unfortunately the image dimension is not part of the Json information but I do need them for later JQuery DOM interactivity. Do any of you JQuery geniuses know of a code that would flawlessly add the width and height to the individual image elements in the container after they load? I was thinking maybe the code could wait for the images to have a width bigger than 5px then add the new width and height to the element. But I wouldn't know how to go about that and make it work stably. Thank you so much!

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  • Android - Using Camera Intent but not updating correctly?

    - by Tyler
    Hello - I am using an intent to capture a picture: Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); i.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "test.jpg"))); startActivityForResult(i, 2); And then once taken I do the following: sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory()))); launchGallery(); While the above seems to work the first time without issue, whenever I run through a second time (so test.jpg already exists) the image actually saves correctly to /sdcard/ but I am finding that the thumbnail does not update and when the gallery loads it shows the previous test.jpg image! I was under the impression that sendBroadcast should update the thumbnails, but it doesn't appear to be.. Is there some other way to go about this and ensure when I call my launchGallery(); method the most recent image I just took appears? Thanks!

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  • Smooth mousover images inside scaled Flex App?

    - by Josh Handel
    I have a flex app I am scaling using systemManager.stage.scaleMode=StageScaleMode.NO_BORDER; for the most part it works well except for my bitmap data (mostly png's from the designers). I can set the mx:image tags to smoothBitmapContent=true and that works great for everything except my mouseover objects. When I do a mouseover, the source is being changed from one embedded image to another embedded image. I have tried several (many) online "smoothimage" classes, and tried to write my own, I have tried to reset smoothBitmapContent every chance I get but still no dice. It seems to mee that because I am scaling at the app level, that the flopped out bitmap is not getting smoothed when it renders. Does anyone have any suggestions on how to keep things smooth (perhaps there is a flag to tell Flex to smooth stuff when it scales it?). Thanks Josh

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  • Manipulating pixels using only toDataURL

    - by Chris
    The problem I have is this: I need to be able to dynamically tint an image using Javascript, but I cannot access pixel data via the canvas. I can, however, store the dataURL (or any other text-based data format) and include that with the code, manipulate that data, and then create an image object using that dataURL. My question is, how can I access the RGBA value of each pixel, given only the dataURL. I assume I need to decode the base64 url, but into what format in order to manipulate on the pixel level? And then would be it be as trivial as re-encoding it as base64, slapping it in a url, and the passing to an image? Thanks.

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  • HTML 5 Canvas - Dynamically include multiple images in canvas

    - by Ron
    I need to include multiple images in a canvas. I want to load them dynamically via a for-loop. I tried a lot but in the best case only the last image is displayed. I check this tread but I still get only the last image. For explanation, here's my latest code(basically the one from the other post): for (var i = 0; i <= max; i++) { thisWidth = 250; thisHeight = 0; imgSrc = "photo_"+i+".jpg"; letterImg = new Image(); letterImg.onload = function() { context.drawImage(letterImg,thisWidth*i,thisHeight); } letterImg.src = imgSrc; } Any ideas?

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  • How to read pixel values of a video?

    - by vikramtheone
    Hi Guys, I recently wrote C programs for image processing of BMP images, I had to read the pixel values and process them, it was very simple I followed the BMP header contents and I could get most of the information of the BMP image. Now the challenge is to process videos (Frame by Frame), how can I do it? How will I be able to read the headers of continuous streams of image frames in a video clip? Or else, is it like, for example, the mpeg format will also have universal header, upon reading which I can get the information about the entire video and after the header, all the data are only pixels. I hope I could convey. Has anyone got experience with processing videos? Any books or links to tutorials will be very helpful. Vikram

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  • PHP or Javascript or other - Draw simple shapes onto images?

    - by Tommo
    I basically have an image of a world map and i would like to place a pin image at a specified pixel co-ordinate ontop of this world map image. It's for a website, so ideally the solution should be in PHP or Javascript (i'm avoiding Java and Flash as i want it to be as simple as possible). I had a look at the processing.js library but it is way to big and bloated for just performing this simple task. Is there a pre-existing Javascript function which will allow me to do this? Or a more simple javascript library that i can use? (processing.js was a bit too advanced for me, i couldnt get it working lol) In terms of a PHP solution, i would prefer taking the load off the server and onto the client for this task, but i would still like to hear methods for doing it in PHP if they are suitable. Thanks!

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  • Is SQL server the best DB for Storing and comparing images in database for a small ecommerce applica

    - by iecut
    I have been trying to create a small e-commerce web based application using MS Dot Net framework. The application will let the user allow to store the image of their product that they want to sell or purchase, then they will have the option to upload the image of a particular product and compare that image with the similar images in the database. So my two main concerns are: - Is MS SQL a good option to store and compare the images. - Is the any other better database that can do the same work with less complexity of work and that is also easy to integrate with MS dot net framework.

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  • I have this broken php upload script

    - by Anders Kitson
    I have this script for uploading a image and content from a form, it works in one project but not the other. I have spent a good few hours trying to debug it, I am hoping someone could point out the issue I might be having. Where there are comments is where I have tried to debug. The first error I got was the "echo invalid file" at the beginning of the last comment. With these specific areas commented out the upload name and type that I am supposed to be grabbing from the form is not being echoed, I am thinking this is where the error is occurring, but can't quite seem to find it. Thanks. <?php include("../includes/connect.php"); /* if ((($_FILES["file"]["type"] == "image/gif") || ($_FILES["file"]["type"] == "image/jpeg") || ($_FILES["file"]["type"] == "image/pjpeg")) && ($_FILES["file"]["size"] < 2000000)) { */ if ($_FILES["file"]["error"] > 0) { echo "Return Code: " . $_FILES["file"]["error"] . "<br />"; } else { echo "Upload: " . $_FILES["file"]["name"] . "<br />"; echo "Type: " . $_FILES["file"]["type"] . "<br />"; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />"; echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />"; /* GRAB FORM DATA */ $title = $_POST['title']; $date = $_POST['date']; $content = $_POST['content']; $imageName1 = $_FILES["file"]["name"]; echo $title; echo "<br/>"; echo $date; echo "<br/>"; echo $content; echo "<br/>"; echo $imageName1; $sql = "INSERT INTO blog (title,date,content,image)VALUES( \"$title\", \"$date\", \"$content\", \"$imageName1\" )"; $results = mysql_query($sql)or die(mysql_error()); echo "<br/>"; if (file_exists("../images/blog/" . $_FILES["file"]["name"])) { echo $_FILES["file"]["name"] . " already exists. "; } else { move_uploaded_file($_FILES["file"]["tmp_name"], "../images/blog/" . $_FILES["file"]["name"]); echo "Stored in: " . "../images/blog/" . $_FILES["file"]["name"]; } } /* } else { echo "Invalid file" . "<br/>"; echo "Type: " . $_FILES["file"]["type"] . "<br />"; } */ //lets create a thumbnail of this uploaded image. /* $fileName = $_FILES["file"]["name"]; createThumb($fileName,310,"../images/blog/thumbs/"); function createThumb($thisFileName, $thisThumbWidth, $thisThumbDest){ $thisOriginalFilePath = "../images/blog/". $thisFileName; list($width, $height) = getimagesize($thisOriginalFilePath); $imgRatio =$width/$height; $thisThumbHeight = $thisThumbWidth/$imgRatio; $thumb = imagecreatetruecolor($thisThumbWidth,$thisThumbHeight); $source = imagecreatefromjpeg($thisOriginalFilePath); imagecopyresampled($thumb, $source, 0, 0, 0, 0, $thisThumbWidth,$thisThumbHeight, $width, $height); $newFileName = $thisThumbDest.$thisFileName; imagejpeg($thumb,$newFileName, 80); echo "<p><img src=\"$newFileName\" /></p>"; //header("location: http://www.google.ca"); } */ ?>

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  • minimum enclosing rectangle of fixed aspect ratio

    - by Ramya Narasimha
    I have an Image with many rectangles at different positions in the image and of different sizes (both overlapping and non-overlapping). I also have a non-negative scores associated with each of these rectangles. My problem now is to find one larger rectangle *of a fixed (given) aspect ratio* that encloses as many of these rectangles as possible. I am looking for an algorithm to do this, if anyone has a solution, even a partial one it would be helpful. Please note that the positions of the rectangles in the image is fixed and cannot be moved around and there is no orientation issue as all of them are upright.

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  • Sometimes, scaling down a bitmap generates a bigger file. Why?

    - by Matías
    Hello, I'm trying to write a method to reduce the size of any image 50% each time is called but I've found a problem. Sometimes, I end up with a bigger filesize while the image is really just half of what it was. I'm taking care of DPI and PixelFormat. What else am I missing? Thank you for your time. public Bitmap ResizeBitmap(Bitmap origBitmap, int nWidth, int nHeight) { Bitmap newBitmap = new Bitmap(nWidth, nHeight, origBitmap.PixelFormat); newBitmap.SetResolution(origBitmap.HorizontalResolution, origBitmap.VerticalResolution); using (Graphics g = Graphics.FromImage((Image)newBitmap)) { g.InterpolationMode = InterpolationMode.HighQualityBicubic; g.DrawImage(origBitmap, 0, 0, nWidth, nHeight); } return newBitmap; }

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  • How to detect page redirect with PHP?

    - by blabus
    I'm trying to detect whether an image exists on a remote server. However, I've tried several methods and can't get any of them to work. Right now I'm trying to use this: if (!CheckImageExists("http://img2.netcarshow.com/ABT-Audi_R8_2008_1024x768_wallpaper_01.jpg")) { print_r("DOES NOT EXIST"); } else { print_r("DOES EXIST"); }; function CheckImageExists($imgUrl) { if (fopen($imgUrl, "r")) { return true; } else { return false; }; }; But it returns 'true' whether the image actually exists or not (the above image should, but change it to gibberish and it still will return 'true'). I have a feeling it could be because if the URL does not exist, it redirects to the homepage of the site. But I don't know how to detect that. Thanks for any help!

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  • Convertion of text into images in joomla

    - by Twinkle
    Hi Everybody, I need a help for converting text into image using joomla. Actually what i am doing is, when the admin enters the text and save then the value will hit the database. Then in the site the last updated value will be shown as image. I done with the pure PHP. Its working fine When i am same concept to implement in joomla i am getting only the binary values not the image. Can anyone help to solve this problem. Thanks and Regards, Twinkle

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  • Images with razor asp.net mvc inside JS

    - by sarsnake
    I need to dynamically insert an image in my JS code. In my Razor template I have: @section Includes { <script type="text/javascript"> var imgPath = "@Url.Content("~/Content/img/")"; alert(imgPath); </script> } Then in my JS I have: insertImg = ""; if (response[i].someFlag == 'Y') { insertImg = "<img src=\"" + imgPath + "/imgToInsert.gif\" width=\"6px\" height=\"10px\" />"; } But it doesn't work - it will not find the image. The image is stored in /Content/img folder... What am I doing wrong?

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  • C# Creating thumbnail (low quality and big size problem)

    - by ile
    public void CreateThumbnail(Image img1, Photo photo, string targetDirectoryThumbs) { int newWidth = 700; int newHeight = 700; double ratio = 0; if (img1.Width > img1.Height) { ratio = img1.Width / (double)img1.Height; newHeight = (int)(newHeight / ratio); } else { ratio = img1.Height / (double)img1.Width; newWidth = (int)(newWidth / ratio); } Image bmp1 = img1.GetThumbnailImage(newWidth, newHeight, null, IntPtr.Zero); bmp1.Save(targetDirectoryThumbs + photo.PhotoID + ".jpg"); img1.Dispose(); bmp1.Dispose(); } I've put 700px so that you can have better insight of the problem. Here is original image and resized one. Any good recommendation? Thanks, Ile

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  • tiled images in swing

    - by sasquatch90
    I have task to prepare two windows with swing. One contains grid of squares, with random numbers in them. In second I need to load pieces of tiled image and then show them in the correct order, forming tiled image. Windows should look like this : http://img535.imageshack.us/img535/3129/lab8a.jpg Okay so how to bite this ? I've used swing only few times to draw some 2d polylines, so basically I just theoretically now what to do. Ok, so window number 1: I start with creating Jframe for the window. Then I do for loop and in it create 16 JLabels with random numbers in them ? How to set margins between each tile and the whole window ? Window number 2 : So I start the same, but instead of loading numbers I add images ? Now, how can I load image from file and then set it as background ?

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  • HTML img scaling

    - by rwallace
    I'm trying to display some large images with HTML img tags. At the moment they go off the edge of the screen; how can I scale them to stay within the browser window? Or in the likely event that this is not possible, is it possible to at least say "display this image at 50% of its normal width and height"? The width and height attributes distort the image -- as far as I can tell, this is because they refer to whatever attributes the container may end up with, which will be unrelated to the image. I can't specify pixels because I have to deal with a large collection of images each with a different pixel size. Max-width doesn't work.

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  • Writing photos (and other things) to disk and getting them later in iphone

    - by ebabchick
    I'm trying to write an image to disk: NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsPath = [paths objectAtIndex:0]; NSString* savePath = [documentsPath stringByAppendingPathComponent:@"photo"]; BOOL result = [data writeToFile:savePath atomically:YES]; if(result) NSLog(@"Save of photo success!"); Then, later, I try to retrieve for a table view cell image: NSData* getPhoto = [NSData dataWithContentsOfFile:[leaf content]]; UIImage* myImage = [UIImage imageWithData:getPhoto]; cell.imageView.image = myImage; Yes, I checked to make sure the [leaf content] returns the same NSString as savePath. What else could be the problem? [NSData dataWithContentsOfFile:[leaf content]]; returns nil.... Thanks guys

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