How to convert get.rgb(x,y) integer pixel to Color(r,g,b,a) in Java?
I have the integer pixel i got from get.rgb(x,y), but i dont have any clue about how to convert it to RGBA. For example, -16726016 should be Color(0,200,0,255). Any tips? ...
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ruby on rails photo upload problem
Hallo rails version 2.3.5 I'm learning rails and I run into a problem. I'm doing some nesting forms from the railscasts tutorials. I changed the text area into a data field to upload photos and everything is working. Now i have to display the uploaded pictures and i simply can't do it. I Tried everything I could find on the net but...
Display local image in iPhone HTML mail
Hello there, In my app, I am composing an HMTL email message with the 3.0+ MFMailComposeViewController. To do this, I created an HTML file, with some placeholders. In my code, I read the HTML file, and with replaceOccurrencesOfString, I replace the placeholders with data from the app. In that way, I compose the body of the email I want t...
list images from directory by function
i'm using this function: function getmyimages($qid){ $imgdir = 'modules/Projects/uploaded_project_images/'. $qid .''; // the directory, where your images are stored $allowed_types = array('png','jpg','jpeg','gif'); // list of filetypes you want to show $dimg = opendir($imgdir); while($imgfile = readdir($dimg)) { if(in_array(strtolower...
How to change the cursor type
This question is related to the previous post. http://stackoverflow.com/questions/2532936/how-to-save-file-and-read How can I change the cursor to "Hand" only when the mouse pointed on grid which is not Null (contained images)? So far the cursor turn to "Hand" all over the grids (null or not null). public GUI() { .... JPanel pD...
Most efficient way to send images across processes
Goal Pass images generated by one process efficiently and at very high speed to another process. The two processes run on the same machine and on the same desktop. The operating system may be WinXP, Vista and Win7. Detailed description The first process is solely for controlling the communication with a device which produces the image...
Image manipulation
Hi, I am just wondering what kind of computing/programming language/frameworks are needed to produce images such as the one in http://www.erdas.com/ ? Programmatically, how does one produce the general spatial analysis images ? ps: I use java most of the time. Thanks ...
Real time complex raster image morphing in Flash CS4
Is there a way to load an image from some url or a local folder and then make some complex morphing to it in real time? For example, I have a vector animated pseudo 3D paper in my project that, for example, is being flipped different ways. Then I want to place some image inside that paper box and want to morph that image accordingly to t...
Python mechanize to follow image links?
mechanize's Browser class is great and it's follow_link() function is great too. But what to do with this kind of links: <a href="http://example.com"><img src="…"></a> Is there any way to follow such links? The text attribute of this type of links is simply '[IMG]', so AFAIK, there is no way to differentiate such links. Any help...
Should I use the GD library in PHP to draw CAPTCHA images?
Is PHP's GD library suitable for drawing images from scratch? Or would I be better off just importing an image and altering it... ...
CssClass and default images in ServerContol
I'm writing a ServerControl in ASP.NET 3.5, and I'm exposing CssClass, so the user can manipulate the visual appearance of the control. My problem is that I want to establish reasonable defaults, so that the user doesn't have to configure CSS unless he wants to change the defaults. My specific problem is that my control is emitting htm...
switching pictures when hovering over a link choice
I am new to this. I am writing in html and I was curious if it is possible to switch to another image when the the link is hovered over. ...
Detect if images have loaded in a UIWebView?
Hey, I have a UIWebview that is loading an image. However I am trying to call a method when the image has completed loaded / rendered. I tried using UIWebViewDelgate and used, -(void)webViewDidFinishLoad:(UIWebView *)webView {} However this method is called before the image has loaded / rendered. How can I fix this. Any help would b...
Fastest way to compute a "Visual" checksum of an image
I'm looking to create an ID system for cataloging images. I can't use md5() since that will change if I alter the EXIF tags of the image. I am currently using the SHA1 checksum computed by imagemagick. It works perfectly, but it's really, really slow on larger images (~15 seconds on a quad-core xeon for a 21 megapixel JPG). Are t...
Display image from memory using file upload
So I'm working on a site that is going to need a file upload control where the user would be able to upload an image, and then the page would postback causing the image to appear for their viewing (before they submit the data to the database, the image is being stored as type image). What I do now is have my own private web form where p...
Flex ComboBox items go out of alignment
I have a combobox that uses a custom itemrenderer to display an image. when scrolling up and down the list the images randomly go out of alignment. How do I stop this? public class PinRenderer extends UIComponent implements IDataRenderer, IListItemRenderer { private var currentPin:DisplayObject; private var _data:Object; ...
Detecting when error image in PictureBox is used
I found this on Google, click here, which someone asked a similar question, receiving a response that they should check if their file exists. However, I'm loading images from web links, in which it displays an error image if A)The picture is not found or B)If, like in image hosting services like Photobucket, displays the 'Bandwidth excee...
Printing images in Flex
In s Flex 3 app, I have canvas with a PNG image for a background. The image is the same width & height as the canvas. I also have some other controls in the canvas: <mx:Canvas id="form" backgroundImage="@Embed(source='images/formBkg.png')" width="640" height="480" > <mx:label .../> <mx:label .../> I print the canvas using th...
Greyscale Image from YUV420p data
From what I have read on the internet the Y value is the luminance value and can be used to create a grey scale image. The following link: http://www.bobpowell.net/grayscale.htm, has some C# code on working out the luminance of a bitmap image : { Bitmap bm = new Bitmap(source.Width,source.Height); for(int y=0;y<bm.Height;y++) ...
UI Testing Automation Tool
Hi, I am currently having Desktop application developed in VB. But there are many UI changes that are made to this application. So i wanted to Automation tool which will compare the Images that are received from the Client with the actula application images, and tell the strings missing, or font is differrent from the images received a...