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  • jQuery center image

    - by Aaron Moodie
    I've got an issue where I was tying to center images using the jQuery Cycle plugin. I found this solution, but it wasn't working on single images (there isn't always 2 images), so I wrote my own little bit of code, which seems to be working, except it sometimes doesn't subtract the height of the image from the height of the div, and so i end up with a margin of 310px. var $image_cnt = $("#images > img").size(); if($image_cnt < 2) { var $single_img = $("#images").children(':first-child'); var h = $single_img.height(); $single_img.css({ marginTop: (620 - h) / 2, }); $(".next").css("display","none"); $(".prev").css("display","none"); } I haven't used jQuery much, and just wanted to know if I'd missed something simple, or had written something wrong, which is why the marginTop wasn't playing nice.

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  • Uploading image Into The $_FILES Without A Form

    - by user1799825
    How to upload image from another server into the array $ _FILES [] without form ‹input type="file" name="file" /› with the creation of a temporary file in / TMP. It is necessary to the script api.php: <? php function doPost ($ sMethod, $ aPost = array ()) { $ aPost ['method'] = $ sMethod; $ aPost ['token'] = APP_TOKEN; $ hCurl = curl_init (); curl_setopt ($ hCurl, CURLOPT_URL, APP_URL. 'api.php'); curl_setopt ($ hCurl, CURLOPT_HEADER, false); curl_setopt ($ hCurl, CURLOPT_RETURNTRANSFER, true); curl_setopt ($ hCurl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt ($ hCurl, CURLOPT_POST, true); curl_setopt ($ hCurl, CURLOPT_POSTFIELDS, $ aPost); $ sData = curl_exec ($ hCurl); curl_close ($ hCurl); } ?>

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  • iOS Display Different Image on Click

    - by user1506841
    Using XCode, I am trying to figure out how to display a different image when someone clicks or presses down on one of my buttons before being taken to a second screen. For example, I have a contact icon on my home screen. When a user clicks the icon, it should change to a darker version on tap before going to the contact screen. Any help is appreciated. -(IBAction) ButtonPressed :(id)sender { UIButton *tempButton = (UIButton *) sender; int tag = tempButton.tag; NSString *viewName; switch (tag) { case 1: [FlurryAnalytics logEvent:@"Contact-Screen"]; viewName = @"ContactScreen"; if( self.appDelegate.sound) [Click play]; [self.appDelegate moveToView:viewName]; break; } }

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  • Android - Memory leak when dynamically building UI with image resource backgrounds

    - by Rich
    I have an Activity that I swear is leaking memory. The app I'm working on does a lot with images, so I've had to be pretty stingy with memory when working directly with Bitmaps. I added an Activity, and now if you use this new Activity it basically puts me over the edge with mem usage and I end up throwing the "Bitmap exceeds VM budget" exception. If you never launch this Activity, everything is smooth as it was previously. I started reading about memory leaks, and I think that I have a similar situation to what is described in the article in the Android docs. I'm dynamically creating a bunch of image views and adding a BackgroundDrawable from the resources and adding an OnClickListener as well. I imagine I have to do some cleanup when the Activity hits onPause in its life cycle, but I'd like to know specifically what is the correct way. Here is the code that should demonstrate the objects I'm working with... LinearLayout templateContainer; . . . ImageView imgTemplatePreview = (ImageView) item.findViewById(R.id.imgTemplatePreview); . . . imgTemplatePreview.setBackgroundDrawable(getResources().getDrawable(previewId)); imgTemplatePreview.setOnClickListener(imgClick); templateContainer.addView(item);

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  • File name after MediaStore.Images.Media.insertImage

    - by gng
    Hi! I am using MediaStore.Images.Media.insertImage(ContentResolver cr, String imagePath, String name, String description) function to insert a newly created image into gallery. System is naming the file by default, but its diferent than names of pictures taken by orginal app(Time stamp). Is there easy way to set it up?

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  • firefox scales images poorly

    - by Jabba
    Hi, I'm using Ubuntu Linux and when I zoom in on a page with "CTRL - +" the images become ugly, i.e. Firefox doesn't scale them correctly. Using Chromium-browser I don't have this issue. I have this problem on several machines with various versions of Firefox (3.5-3.6). Here is an example: http://xs.to/image-2AA4_4BDA24DE.jpg . Any idea how to change the scaling behaviour of Firefox? Thanks, Jabba

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  • Iphone resizing images

    - by Greg
    Hi all, As far as I have read, scaling a big image to draw it on the iPhone is very slow [1]. I really need to do it fast and I wonder why zoom goes so fast on the iPhone while code scaling is so slow. Any idea? By the way, any fast way to do scaling? [1] For instance: http://stackoverflow.com/questions/1282830/uiimagepickercontroller-uiimage-memory-and-more Thanks for your time. Greg

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  • Rotating pictures

    - by Samuel
    Hello! I am currently programming a Tower Defence game for university and i stumbled upon a problem: i want my towers to rotate towards the monster it is shooting at. The towers are bitmaps and we are supposed to program in a language called Modula 2: If you have heard of it any help is welcome to rotate bitmaps, if you havent it might still be helpful to know how i could start, how image rotation is done in general. Thanks in advance, Samuel

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  • My images are blurry! Why isn't WPF's SnapsToDevicePixels working?

    - by Zack Peterson
    I'm using some Images in my WPF applcation. XAML: <Image Name="ImageOrderedList" Source="images/OrderedList.png" ToolTip="Ordered List" Margin="0,0,5,5" Width="20" Height="20" SnapsToDevicePixels="True" MouseUp="Image_MouseUp" MouseEnter="Image_MouseEnter" MouseLeave="Image_MouseLeave" /> But, they appear fuzzy: Here's a zoomed-in, side-by-side comparison. An original is on the left: Why doesn't that SnapsToDevicePixels="True" line prevent this problem?

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  • Java: Send BufferedImage through Socket with a low bitdepth

    - by Martijn Courteaux
    Hi, The title says enough I think. I have a full quality BufferedImage and I want to send it through an OutputStream with a low bitdepth. I don't want an algorithm to change pixel by pixel the quality, so it is still a full-quality. So, the goal is to write the image (with the full resolution) through the OuputStream with a very small size. Thanks, Martijn

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  • How does an unsharp mask work?

    - by Bob Aman
    I've been playing around with image processing lately, and I'd like to know how the unsharp mask algorithm works. I'm looking at the source code for Gimp and it's implementation, but so far I'm still in the dark about how it actually works. I need to implement it for a project I'm working on, but I'd like to actually understand the algorithm I'm using.

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  • Android Gallery (view) video (also thumbnail issues)

    - by Drew
    Currently we have a Gallery view to which we need to add thumbnails for images/video. How do we get the already generated thumbnails (the ones that the native Gallery app shows) if we already have the image's/video's content:// URI? (We are using Android 1.6, Video.Thumbnails does not exist)

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  • How to get base64 encoded contents for an ImageReader?

    - by htf
    Hi. How do I read an image into a base64 encoded string by its ImageReader? Here's example source code using HtmlUnit. I want to get the base64 String of img: WebClient wc = new WebClient(); wc.setThrowExceptionOnFailingStatusCode(false); wc.setThrowExceptionOnScriptError(false); HtmlPage p = wc.getPage("http://flickr.com"); HtmlImage img = (HtmlImage) p.getByXPath("//img").get(3); System.out.println(img.getImageReader().getFormatName());

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  • .NET photo processing component

    - by John Williams
    Hi folks! I'm looking for a .NET image processing component or an open source alternative to automate the following tasks: Photo capture (webcams and photo cameras) Photo printing (grid/strip modes) Applying photo effects Saving photos AtalaSoft DotImage is quite expensive, any other suggestions are welcome. Thanks J

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  • Compressing High Resolution Satellite Images

    - by Monika
    Hi! Please advise the best way to compress satellite Image. Details Uncompressed size - 60 gb Uncompressed format - IMG 4 Bands (To be retained after compression) Preferred compression format - JPEG2000 Lossy enough to aid in Visual analysis. Thanks Monika

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  • smallest filesize for transparent gif

    - by zaf
    I'm looking for the smallest (in terms of filesize) transparent 1 pixel image. Currently I have a gif of 49 bytes which seems to be the most popular. But I remember many years ago having one which was less than 40 bytes. Could have been 32 bytes. Can anyone do better? Graphics format is no concern as long as modern web browsers can display it and respect the transparency.

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  • Open Source ImageProcessing Library, SDK or API

    - by Kubi
    Hi, I am looking for an open source image processing libraries or APIs those provide me to create a program which captures the license plate of a car in a parking system and gives me the number plate as a text . It would be great if I can have it in managed code (c# or java). Any help would be greatly appreciated. Thanks in advance

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  • Gradient Mapping in .NET

    - by Otaku
    Is there a way in .NET to perform the same technique Photoshop uses for Gradient Mapping (Image - Adjustments - Gradient Map [Gradient Editor])? Any ideas, links, code, etc. would be welcome.

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  • Detect Alpha Channel with ImageMagick

    - by brad
    Scenario I would like to save images with alpha transparency as .png and images without alpha transparency as .jpg (even if their original format is .png or .gif). How can I detect whether or not an image has alpha transparency using ImageMagick?

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