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• using jquery, how do you change the image on hover inside of a div

  - by oo

  i have the following jquery code to replace an image when you hover over with the mouse but it doesn't seem to be working. Can anyone find anything wrong with this code below. $(function() { $("div.delete img") .mouseover(function() { $(this).attr("src", "../../images/comment-hover-del.png"); }) .mouseout(function() { $(this).attr("src", "../../images/comment-del.png"); }); }); and this is my html: <div class="delete" id="26"><img src="../../images/comment-del.png" border="0"></div>

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• Blob ID matching over multiple frames in C++ (image analysis)

  - by pollux

  Dear reader, I'm working on a blob matching and tracking library in C++. Currently I'm using openCV to detect blobs and try to match blobs in a new frame by checking the position, velocity and size of the blob. This works quite okay and I'm receiving a high blob match rate (95% or higher). Sometimes blobs fall out of the image or new blobs appear. Now I need to give matched blobs the same ID as they had before. I'm wondering if there are typical or commonly used techniques for doing this. Or even some keywords I can use to google on. Thanks

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• Html newbie! background-image question

  - by Kevin Li

  Hi! I'm learning HTML and I wanted to practice by recreating a invoice sent to me by Electronics Expo. However, I used the background-image property and repeated it by repeat-x and now, the background stretches across the page so much that it has a horizontal bar to drag. http://htmlpocketreference.110mb.com/index.html You can see what I did in my link above. Also, I would really appreciate some advice on simplifying my CSS coding. It seems really messy and I have to move every element once something changes. -.- Thanks!

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• C# PCL rendering into TIFF (or other image format)

  - by Nathan Loding

  I'm looking for the best solution -- and perhaps the cheapest also -- to take PCL5e and PCL6 compliant code and render it into a TIFF image. Reliably. Does anyone have any experience with the PCLTool SDK from PageTech (http://www.pagetech.com/pcl.php)? This looks to be the best I can find, but I'm not sure how flexible it really is. The other options is trying to write my own interface, which would be a BEAST of a project and not one I really want to try to tackle. Any open-source solutions out there? Anyone with a C#/.NET project having success with PCL rendering? If so, how?

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• PDF Making with Rotated Image for iPhone

  - by MobiHunterz

  I'm having problems with drawing rotated images on PDF, my output is worse. My case is, we don't know have any fixed co-ordinates. X,Y, rotation, etc. depends on ImageView itself. I select the ImageView and rotate it through Sliders. Check on ZOSH application. I need to implement functionalities like that app. I want to make PDF by adding images one by one. Please send me link for any example that can help me out, I'm stuck here. I'm drawing the image on PDF based on center of the imageview. Please help me, Thank You.

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• simple jquery image change onclick failing

  - by ian

  I have a simple jQuery image switch that is failing. $('.heart_img').click(function() { var heart_type = $(this).attr('src'); //alert( heart_type ); if ( heart_type == 'images/unheart.png') { //alert('uheart'); $(this).attr('src','images/heart.png'); } else if ( heart_type == 'images/heart.png'); { $(this).attr('src','images/unheart.png'); } }); The alerts fire correctly when not commented out so and the images are in the correct place so I am not sure what the problem is.

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• Why is the image not showing in IE7?

  - by fmz

  I have an image on this page in the blue bar area. It shows up fine in FF, Safari, IE8 & Chrome, but it does not show up in IE7. Here is the HTML: <div id="featuredImage"> <img src="images/website_design_charlotte.jpg" width="960" height="159" alt="" /> </div> Here is the CSS: #featuredImage { position: absolute; z-index: 9; top: 129px; left: 0; } #featuredImage img { width: 986px; height: 159px; position: relative; z-index: 10; } Would appreciate some help getting this to show up properly in IE7. Thanks!

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• Multi dimensional array with get image data

  - by Dave

  I'm really confused with an array im making, its gotten a bit confusing to follow but i believe its the only way for me to approach what im trying to do. My idea here is to store getImageData in an array so i can link each image to an array of data. This is how i create my array: var listObj = { id: uid, extra: [ ctx2.getImageData(abposx,abposy,imgwidth,imgheight) ] }; pixeld.push(listObj); So now im trying to run through the array "pixeld" to find the uid but i don't know how the syntax should be.... this is what i tried: for (j = (pixeld.length-1); j > -1; --j){ if(pixeld[j].extra.data[3] !==0){ //line 220 matches.push(pixeld[j].id); } } The problem is i get this error: Uncaught TypeError: Cannot read property '3' of undefined on line 220 I have marked which line is 220 in the for loop. Any one know what my mistake is ?

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• Image Size for Animation!

  - by taimur-hamza

  Hi Everybody, I m new to iphone app development and i need some help. I have a list of 30 images that i have to animate and display with 0.1 second interval. I put all the images in an Array using this imageletter.animationImages = [NSArray arrayWithObjects:[UIImage imageNamed:@"1.png"], ...... ,nil] And then animate it using these statements, [imageletter setAnimationDuration:16]; [imageletter startAnimating]; [NSTimer scheduledTimerWithTimeInterval:mytime target:self selector:@selector(StopAfterCertainTime) userInfo:nil repeats:NO]; Now the problem is that the size of each image is 8kb , it runs fine on iphone simulator but crashes on device. When i used 30 other images of 4kb each it runs fine both on simulator and device. Can anybody tell me what is the ideal size for such kind of task. Thanks

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• store image in sqlite

  - by bbkaaka

  i have the folloing code : final Gallery g = (Gallery) findViewById(R.id.gallery); g.setAdapter(new ImageAdapter(this)); g.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView parent, View v, int position, long id) { final ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); Bitmap b = null; b=BitmapFactory.decodeResource(getResources(),*********); b.compress(CompressFormat.PNG, 0, outputStream); AlertDialog.Builder builder = new AlertDialog.Builder(Edit.this); builder.setTitle("Comfirm"); builder.setMessage("Do you want to choose this picture?"); builder.setPositiveButton("Continue", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { image = outputStream.toByteArray(); } }); you see * which need type int like android.R.drawble.icon. i want to store the picture when users click to picture how can i get the picture

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• Image as a background of a form in Delphi

  - by Averroes

  I'm using Delphi 2006. I have a few PNG images with transparencies and I have to create a GUI using them (top bar, left panel...). The images have different aligns properties. One of the images is the background of the form. The problem here is that I can't align it as alClient because it only occupies the rectangular zone that the other images have left, showing the naked canvas in their transparent zones. What I need is that the background image is put behind all the other images and taking all the canvas size. Is there anyway to do this? I know I can do this writting some logic in the OnResize event of the form but I was just curious if I was missing something. Thanks.

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• Reasons for sticking with TEXT, NTEXT and IMAGE instead of (N)VARCHAR(max) and VARBINARY(max)

  - by John Assymptoth

  TEXT, NTEXT and IMAGE have been deprecated a long time ago and will, eventually, be removed from SQL Server. However, they are not going to be discontinued right away, not even in the next version of SQL Server, so it's not convenient for my enterprise to transform thousands of columns right away, even if it is using SQL Server 2012. What arguments can I use to postpone this migration? I know there are some advantages in using the new types. But I'm strictly looking for reasons not to migrate my data that is already functioning pretty well in the old types.

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• expiring image assets referenced from stylesheets

  - by crankharder

  So rails appends timestamps to CSS, JS and image files: image_tag 'foo.png' => <img src="foo.png?123123123123' /> # or somethin like that ...which is really useful for doing far-future expiration, etc. with Apache's help. But what about images referenced from stylesheets? They don't get an appended timestamp. So it seems to me that it's entirely possible to update one of those images, redeploy, and then not see the file change because the browser doesn't think it's been updated. Unless I'm missing something. If I'm not, is there a decent solution to this problem?

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• Curl download image only if not older than 2 days

  - by mark

  I want to download a image from a remote server only if it is not older than 2 days. I have the constructing as below now. Is this right? I want to now the last_modified data first before downloading. $ch = curl_init($file_source); // the file we are downloading curl_setopt($ch, CURLOPT_TIMEOUT, 20); curl_setopt($ch, CURLOPT_FILE, $wh); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); curl_setopt($ch, CURLOPT_FILETIME, true); curl_exec($ch); $headers = curl_getinfo($ch); $last_modified = $headers['filetime']; if ($last_modified != -1) { // unknown echo date("Y-m-d", $last_modified); //etc } curl_close($ch); fclose($wh);

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• Content Provider and Image storage

  - by Paru

  I want to share some image Icons between two applications. I stored the icons in a folder from Application 1 and tried use the folder from application 2. That time i got some permission issue. I was not able add the permission also because it is not a rooted device. So i am now trying to store the icons in a content provider. Is it possible to store the images in a Content provider ? Is there any other good method to implement this ? Please help.

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• jquery image swap works in one html file but not another

  - by Jon

  I have two header templates for my site. One for the blog section and one for everything else. The below code swaps an image in my nav menu, on hover. It works for one template but not the other. The html code is pretty much identical in both header templates. Please help me!! $(document).ready(function(){ $('.nav-home, .nav-port, .nav-exp, .nav-cont, .nav-blog').hover(function(){ $(this).attr('src','/images/' + $(this).attr('class') + '-hover.gif'); }, function(){ $(this).attr('src','/images/' + $(this).attr('class') + '.gif'); }); });

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• jQuery: Apply css to image on click event

  - by DasRakel

  I want basically the same as http://stackoverflow.com/questions/530701/jquery-select-image a row of images that you can select one of. But I'm trying to style the one I select, and store it. var selectedicon = ""; function selecticon(){ $('#iconselect').children().click(function(){ $(".selectedicon").removeclass("selectedicon"); selectedicon = $(this).attr("src"); $(this).addclass("selectedicon"); }); } on this <div id="iconselect"> <img src="/red-dot.png" class="selectedicon" /> <img src="/green-dot.png" /> <img src="/blue-dot.png" /> <img src="/orange-dot.png" /> </div> What am I doing wrong?

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• How do I create a text image with a transparent value for the text with image magick

  - by kareed

  I am using the following command to create an image of text with a shadow. What I would like to do is to create the text with a transparent opacity. system('convert -background transparent ' . '-fill rgb(127, 127, 127) ' . '-pointsize 30 ' . 'label:"This is a test" ' . '-background transparent -flatten -trim +repage ' . $fileName); how would I go about modifying this to accomplish getting transparent text?

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• Efficiently Reshaping/Reordering Numpy Array to Properly Ordered Tiles (Image)

  - by Phelix

  I would like to be able to somehow reorder a numpy array for efficient processing of tiles. what I got: >>> A = np.array([[1,2],[3,4]]).repeat(2,0).repeat(2,1) >>> A # image like array array([[[1, 1, 2, 2], [1, 1, 2, 2]], [[3, 3, 4, 4], [3, 3, 4, 4]]]) >>> A.reshape(2,2,4) array([[[1, 1, 2, 2], [1, 1, 2, 2]], [[3, 3, 4, 4], [3, 3, 4, 4]]]) what I want: X >>> X array([[[1, 1, 1, 1], [2, 2, 2, 2]], [[3, 3, 3, 3], [4, 4, 4, 4]]]) to be able to do something like: >>> X[X.sum(2)>12] -= 1 >>> X array([[[1, 1, 1, 1], [2, 2, 2, 2]], [[3, 3, 3, 3], [3, 3, 3, 3]]]) Is this possible without a slow python loop? Bonus: Conversion back from X to A Edit: How can I get X from A?

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• transition background-image/css change on hover?

  - by John Isaacks

  I have a thumb nail inside another div, when the thumbnail is hovered I want the parent div to fade/transition to the background of the thumbnail, then fade back to the original image after hover. I have this so far which changes the parent background to that of the thumbnail and back but with no transition. $(document).ready(function() { var originalBG; var hoverBG; $(".alt-img").hover( function () { originalBG = $(this).parent().css('backgroundImage'); hoverBG = $(this).css('backgroundImage'); $(this).parent().css('backgroundImage',hoverBG); }, function () { $(this).parent().css('backgroundImage',originalBG); } ); });

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• How to load image from NSMutableArray

  - by pbcoder

  I want to load the image URL from my NSMutableArray. Here is my Code: id path = (NSString *)[[stories objectAtIndex: storyIndex] objectForKey: @"icon"]; NSURL *url = [NSURL URLWithString:path]; NSData *data = [NSData dataWithContentsOfURL:url]; UIImage *img = [[UIImage alloc] initWithData:data cache:NO]; If I use: id path = @"http://www.xzy.de/icon.png"; it´s all right, but not if I want to extract the imageURL from my Array Anyone who can help me? Thanks!

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• $_FILES empty on image upload

  - by zvir

  i need help, i'm programing some kind of catalogue and i have a page where clients can upload their logo or images. every page i make is included in index.php and my url looks like something like this www.url.com/index.php?s=upload where "upload" is name of upload.php file. when i create form on that upload.php file and submit it, $_FILES array is empty. echo "<form method=\"post\" enctype=\"multipart/form-data\" action=\"index.php\" />\n"; echo "<input type=\"file\" name=\"image\">\n"; echo "<input type=\"hidden\" name=\"s\" value=\"upload\">\n"; echo "<input type=\"submit\" name=\"submit\" value=\"Spremi\">\n"; echo "</form>\n"; i tried everything and nothing works. $_POST items are returned but $_FILES are empty...

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• PHP include image file with changing filename

  - by Gijigogo

  Hi, I am completely new to PHP so forgive me if this question seems very rudimentry. And thank you in advance. I need to include a jpg that is generated from a webcam on another page. However I need to include only the latest jpg file. Unfortunately the webcam creates a unique filename for each jpg. How can I use include or another function to only include the latest image file? (Typically the filename is something like this 2011011011231101.jpg where it stands for year_month_date_timestamp).

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• NullPointerException when accessing image files in a .jar file

  - by user548240

  Hi, I have pretty much tried everything but still have this same problem. I have the following setup: I have a images.jar containing a folder called 'images' in which there are multiple image files. I add images.jar to the java build path of the project in eclipse, and i've been trying to use the following code to access the individual images in the jar: URL url = this.getClass().getResource("images/a.png"); ImageIcon icon = new ImageIcon (url); Unfortunately, the URL object is always NULL. I don't think this has anything to do with where I put images.jar file as it is added to the classpath in eclipse. I have also tried using the path '/images/a.png', but still the same problem. Any suggestion would be extremely welcome! Thanks.

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• centering image vertically in all resolutions

  - by gnomixa

  I need to be able to center the image vertically for all the common resolutions. A lot of ppl here on SO have already asked this question before, and 90% of then give this tutorial http://www.jakpsatweb.cz/css/css-vertical-center-solution.html as an answer. However, when viewed at my 1280 by 1024 res monitor in FF, it's not centered. And worse yet, it breaks horribly in IE7. So, it's definitely NOT the answer. Am I chasing the impossible dream? The solution has to work for FF and IE 6/7 the solution can be anything that would work, though being a bit of a purist, I would prefer a div over table:)

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