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  • Manipulating Images with .NET Programs

    Many image processing techniques are simpler than you might expect and can be implemented easily in C# or Visual Basic....Did 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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  • Using a front controller design pattern doesn't allow images to be served

    - by MrMe TumbsUp
    I am currently using a front controller. All requests for my website go through it. I have a problem with image links like: <img src="img/image.jpg" /> Then my front controller will try to dispatch the request to: application/controller/ImgController.php. Then the image won't load. I think it has something to do with the .htaccess file: RewriteEngine On RewriteCond %{REQUEST_FILENAME} -s [OR] RewriteCond %{REQUEST_FILENAME} -l [OR] RewriteCond %{REQUEST_FILENAME} -d RewriteRule ^.*$ - [NC,L] RewriteRule ^.*$ index.php [NC,L]

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  • Why ISO master (editor) does not read Windows images

    - by Jacek Blocki
    I have the followjng problem with ISO master software: I try to edit WIndows 7 ISO image $ isomaster windows7.iso The file does open, unfortunately all I get is README with message: This disc contains a "UDF" file system and requires an operating system that supports the ISO-13346 "UDF" file system specification. isomaster comes form Ubuntu repository, I am using 12.04. The system has kernel support for UDF installed, I can mount above ISO (mount -o loop) and see its content read only. Any idea how to fix it? Using other than isomaster tool is also an option. Regards, Jacek

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  • How To Make Images, Music, Video, and PDF Files Open On The Desktop in Windows 8

    - by Chris Hoffman
    Windows 8 opens many types of files in the Windows 8 interface formerly known as Metro by default. If you’re at the desktop and double-click many types of media files, you’ll see a full-screen media viewer. You can easily prevent these media files from opening in the full-screen Windows 8 apps when you double-click them. All you have to do is change your default programs. What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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  • Splitting a texture atlas into seperate images

    - by bigtunacan
    I'm doing a port of an existing game and the designer no longer has all of the original art; he only has the resulting texture atlases he used when developing for iPad. The tool I'm using won't support these files so I need to break them back out into separate PNG files. I'm hoping someone knows of a software tool that does this. PC software would be preferred in this case, but Mac would suffice.

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  • How to merge two .iso images

    - by pgrytdal
    I am following this tutorial to install Android onto my computer VIA Virtual Box. My problem is, they want you to download liveandroidv0.3.iso.001 liveandroidv0.3.iso.002 then they want you to merge these two files with cat liveandroidv0.3.iso.001 liveandroidv0.3.iso.002 > liveandroidv0.3.iso in the Terminal. The problem is, when I run the command, I get the following output cat liveandroidv0.3.iso.001 liveandroidv0.3.iso.002 > liveandroidv0.3.iso cat: liveandroidv0.3.iso.001: No such file or directory cat: liveandroidv0.3.iso.002: No such file or directory So, I was wondering if there was an alternative way to merge these files? Or if you guy's could help me merge them this way? Extra info: OS: Ubuntu 12.10 I downloaded the files to my /downloads folder in my home directory.

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  • Disable printing extraneous job info when I print a images

    - by pgrytdal
    As of 10/11/12 I this is still a problem. Peterling, that link you gave me was for Windows. Not Ubuntu. I need to know how to do this in Ubuntu. Whenever I print off an image, before the actual image prints, I get these weird "print job" sheets. (I named them that, because I don't know what else to call them.) They say something like: Media Limits: 0.12 x 0.38 to 8.38 x 10.38 inches Job ID: Officejet-Pro-L7700-64 Driver: hp-officejet_pro_17700.ppd Driver version: Description: HP Officejet Pro L7700 Make and Model: HP Officejet Pro L7700, hpcups 3.12.2 Printer: Officejet-Pro-L7700 Created at: Fri Sep 28 14:12:53 2012 Printed at: Fri Sep 28 14:12:53 2012 How do I fix this so the page doesn't print?

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  • Technology/Techniques to prevent offensive images on a website

    - by Andreas Siegers
    I am planing to build a website which one of its main features is the usage of pictures. I was wondering what existing techniques are used to prevent offensive pictures (i.e pornography) to get loaded by users. i.e What does Facebook or Pinterest use? As well I would like to know what your recommendations would be to control offensive pictures to get uploaded to the site (OpenSource tools maybe..) Taking into consideration this is a personal project and will be developed with a very small budget. Thank you

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  • WMV will play audio but not show images (dark screen)

    - by GUI Junkie
    This happens on one computer. On the other computer I can see the video. I've installed GStreamer, FFMpeg and Ubuntu Restricted Extras. On the computer where it doesn't work, I've tried both Movie Player and VLC. There must be some difference between the two computers, but how can I obtain all the system information in such a way that a diff could be reasonably done? Or just any other suggestion on how to solve this would be appreciated. :-)

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  • Encrypt images before uploading to Dropbox [migrated]

    - by Cherry
    I want to encrypt a file first before the file will be uploaded to the dropbox. So i have implement the encryption inside the uploading of the codes. However, there is an error after i integrate the codes together. Where did my mistake go wrong? Error at putFileOverwriteRequest and it says The method putFileOverwriteRequest(String, InputStream, long, ProgressListener) in the type DropboxAPI is not applicable for the arguments (String, FileOutputStream, long, new ProgressListener(){}) Another problem is that this FileOutputStream fis = new FileOutputStream(new File("dont know what to put in this field")); i do not know where to put the file so that after i read the file, it will call the path and then upload to the Dropbox. Anyone is kind to help me in this? As time is running out for me and i still cant solve the problem. Thank you in advance. The full code is as below. public class UploadPicture extends AsyncTask<Void, Long, Boolean> { private DropboxAPI<?> mApi; private String mPath; private File mFile; private long mFileLen; private UploadRequest mRequest; private Context mContext; private final ProgressDialog mDialog; private String mErrorMsg; public UploadPicture(Context context, DropboxAPI<?> api, String dropboxPath, File file) { // We set the context this way so we don't accidentally leak activities mContext = context.getApplicationContext(); mFileLen = file.length(); mApi = api; mPath = dropboxPath; mFile = file; mDialog = new ProgressDialog(context); mDialog.setMax(100); mDialog.setMessage("Uploading " + file.getName()); mDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); mDialog.setProgress(0); mDialog.setButton("Cancel", new OnClickListener() { public void onClick(DialogInterface dialog, int which) { // This will cancel the putFile operation mRequest.abort(); } }); mDialog.show(); } @Override protected Boolean doInBackground(Void... params) { try { KeyGenerator keygen = KeyGenerator.getInstance("DES"); SecretKey key = keygen.generateKey(); //generate key //encrypt file here first byte[] plainData; byte[] encryptedData; Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, key); //File f = new File(mFile); //read file FileInputStream in = new FileInputStream(mFile); //obtains input bytes from a file plainData = new byte[(int)mFile.length()]; in.read(plainData); //Read bytes of data into an array of bytes encryptedData = cipher.doFinal(plainData); //encrypt data FileOutputStream fis = new FileOutputStream(new File("dont know what to put in this field")); //upload to a path first then call the path so that it can be uploaded up to the dropbox //save encrypted file to dropbox // By creating a request, we get a handle to the putFile operation, // so we can cancel it later if we want to //FileInputStream fis = new FileInputStream(mFile); String path = mPath + mFile.getName(); mRequest = mApi.putFileOverwriteRequest(path, fis, mFile.length(), new ProgressListener() { @Override public long progressInterval() { // Update the progress bar every half-second or so return 500; } @Override public void onProgress(long bytes, long total) { publishProgress(bytes); } }); if (mRequest != null) { mRequest.upload(); return true; } } catch (DropboxUnlinkedException e) { // This session wasn't authenticated properly or user unlinked mErrorMsg = "This app wasn't authenticated properly."; } catch (DropboxFileSizeException e) { // File size too big to upload via the API mErrorMsg = "This file is too big to upload"; } catch (DropboxPartialFileException e) { // We canceled the operation mErrorMsg = "Upload canceled"; } catch (DropboxServerException e) { // Server-side exception. These are examples of what could happen, // but we don't do anything special with them here. if (e.error == DropboxServerException._401_UNAUTHORIZED) { // Unauthorized, so we should unlink them. You may want to // automatically log the user out in this case. } else if (e.error == DropboxServerException._403_FORBIDDEN) { // Not allowed to access this } else if (e.error == DropboxServerException._404_NOT_FOUND) { // path not found (or if it was the thumbnail, can't be // thumbnailed) } else if (e.error == DropboxServerException._507_INSUFFICIENT_STORAGE) { // user is over quota } else { // Something else } // This gets the Dropbox error, translated into the user's language mErrorMsg = e.body.userError; if (mErrorMsg == null) { mErrorMsg = e.body.error; } } catch (DropboxIOException e) { // Happens all the time, probably want to retry automatically. mErrorMsg = "Network error. Try again."; } catch (DropboxParseException e) { // Probably due to Dropbox server restarting, should retry mErrorMsg = "Dropbox error. Try again."; } catch (DropboxException e) { // Unknown error mErrorMsg = "Unknown error. Try again."; } catch (FileNotFoundException e) { } return false; } @Override protected void onProgressUpdate(Long... progress) { int percent = (int)(100.0*(double)progress[0]/mFileLen + 0.5); mDialog.setProgress(percent); } @Override protected void onPostExecute(Boolean result) { mDialog.dismiss(); if (result) { showToast("Image successfully uploaded"); } else { showToast(mErrorMsg); } } private void showToast(String msg) { Toast error = Toast.makeText(mContext, msg, Toast.LENGTH_LONG); error.show(); } }

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  • Prevent abuse of public HTTP directory meant for images

    - by sutre
    The situation: Each user has their own public HTTP directory, meant for images only. This could easily be abused by users using it to serve large files, wasting bandwidth. The question: Is there any fairly simple way to prevent this abuse? Either by allowing the webserver to only images to be served, restricting size, or some other method.

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  • To View multiple uploaded images [closed]

    - by Nilesh Sonawane
    PHP Javascript Image Upload function updatepicture(pic) { document.getElementById("image").setAttribute("src", pic); document.getElementById("image1").setAttribute("src", pic); document.getElementById("image2").setAttribute("src", pic); } Vastu deals Image Upload Upload message will go here. //query for insert timepass.php 0) { if ($_FILES['file']['size'] parent.document.getElementById("message").innerHTML = ""; parent.document.getElementById("file").value = ""; window.parent.updatepicture(""); parent.document.getElementById("message").innerHTML = "There was an error uploading your image. Please try again later."; parent.document.getElementById("message").innerHTML = "Your file is larger than 150kb. Please choose a different picture.";

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  • AS3 - At exactly 23 empty alpha channels, images below stop drawing

    - by user46851
    I noticed, while trying to draw large numbers of circles, that occasionally, there would be some kind of visual bug where some circles wouldn't draw properly. Well, I narrowed it down, and have noticed that if there is 23 or more objects with 00 for an alpha value on the same spot, then the objects below don't draw. It appears to be on a pixel-by-pixel basis, since parts of the image still draw. Originally, this problem was noticed with a class that inherited Sprite. It was confirmed to also be a problem with Sprites, and now Bitmaps, too. If anyone can find a lower-level class than Bitmap which doesn't have this problem, please speak up so we can try to find the origin of the problem. I prepared a small test class that demonstrates what I mean. You can change the integer value at line 20 in order to see the three tests I came up with to clearly show the problem. Is there any kind of workaround, or is this just a limit that I have to work with? Has anyone experienced this before? Is it possible I'm doing something wrong, despite the bare-bones implementation? package { import flash.display.Sprite; import flash.events.Event; import flash.display.Bitmap; import flash.display.BitmapData; public class Main extends Sprite { public function Main():void { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event = null):void { removeEventListener(Event.ADDED_TO_STAGE, init); // entry point Test(3); } private function Test(testInt:int):void { if(testInt==1){ addChild(new Bitmap(new BitmapData(200, 200, true, 0xFFFF0000))); for (var i:int = 0; i < 22; i++) { addChild(new Bitmap(new BitmapData(100, 100, true, 0x00000000))); } } if(testInt==2){ addChild(new Bitmap(new BitmapData(200, 200, true, 0xFFFF0000))); for (var j:int = 0; j < 23; j++) { addChild(new Bitmap(new BitmapData(100, 100, true, 0x00000000))); } } if(testInt==3){ addChild(new Bitmap(new BitmapData(200, 200, true, 0xFFFF0000))); for (var k:int = 0; k < 22; k++) { addChild(new Bitmap(new BitmapData(100, 100, true, 0x00000000))); } var M:Bitmap = new Bitmap(new BitmapData(100, 100, true, 0x00000000)); M.x += 50; M.y += 50; addChild(M); } } } }

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  • Gridview - Conditional Images

    This Gridview sample shows how to, for each row, based on other data within that row, to show a different image. We do this by creating a TemplateField, and putting an ASP.Net Image control within it, called 'Image1'. Then, inside the RowDataBound event of the Gridview, we put code, which first, checks and finds the Image control in that row, and then assigning a different JPG file to the ImageURL property of that image. One other thing here, you'll notice, is that when the criteria is matched, we set the Image control's Visible property to 'True'. That's because, one extra criteria is, that if the Units In Stock is larger than 80, we set the Image control's Visible property to 'False'. Naturally, since we're checking one particular column in the Gridview for this data, we're using a Select Case statement.

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  • How to add metadata to images using Shotwell

    - by mcaleaa
    Using Ubuntu 13.04. I have a very basic question about Shotwell. I would like to add a desciption to my photos. I right-click on an image in Nautilus. Choose Open with Shotwell photo viewer. I can't find a way to edit any metadata for the photo. As an example, Shotwell help: http://yorba.org/shotwell/help/view-view.html ... says that I should be able to select Photos Edit title, but I don't have this option in my menu. (I have 'Photo' but not 'Photos'). F2 does nothing for me. My menu options are: File, Edit, View, Photo, Help. I'm missing something very basic here. Grateful for your help!

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  • How to manage the images for my Desktop Application

    - by NonExistent
    What's the better way to manage the image files of my app? i've been thinking about the way that i do right now (save the image as a BLOB IN db), and i ask myself if would be better to manage the image as text in my DB, i mean, convert the image to hex(length of 500), then save in the db as text, and when calling it convert it from hex to image, or something like that, but what do you consider as an Experienced Progammer that is the better way? Maybe the question is too broad, but i need to know that, and nobody answers me anywhere...

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