I've written this simple image preloader based on my knowledge of javascript, but I don't know if it will actually load the images before the page is displayed or if it will still load the images. function preloadImages(html) { for(var i=0;i<document.images.length;i++) { img_obj = new Image(); img_obj.src = document.images...
The image resizing function provided by Emgu (a .net wrapper for OpenCV) can use any one of four interpolation methods: CV_INTER_NN (default) CV_INTER_LINEAR CV_INTER_CUBIC CV_INTER_AREA I roughly understand linear interpolation, but can only guess what cubic or area do. I suspect NN stands for nearest neighbour, but I could be wrong...
Im developing a memory game. As i click on a button I want the background to switch. When I click on the card the second time i want the background to switch for a second and then go back to the original (if it wasnt the correct card). But the background of the buttons are not changed until i return from the method (buttonPressed). Why i...
I was helped here a while ago about loading images from an array, but would like to know the exact details please. Where does the code go if my app will be as simple as images that load from an array depending on whether the user chose the next or previous button? Does it go in the View Controller class? What do I need if I literally j...
Just noticed something strange and wondered if there was a reason for it. I have a grayscale image in EmguCV (.net wrapper for openCV). If this image has C channels (1 for grayscale, 3 for RGB), a width of X pixels and a height of Y pixels, the data array is consistently of the form: [Y,X+2,C] Anyone know why? ...
Using the Python Imaging Library, I can call img.convert("P", palette=Image.ADAPTIVE) or img.convert("P", palette=Image.WEB) but is there a way to convert to an arbitrary palette? p = [] for i in range(0, 256): p.append(i, 0, 0) img.convert("P", palette=p) where it'll map each pixel to the closest colour found in the image? ...
Is there an efficient way of adjusting the contrast of an image in C#? I've seen this article which advocates doing a per-pixel operation. Not quick. I'm using colour matrices in places already and find them to be quick. Is there a way to adjust contrast using them? (Note: This guy gets it wrong.) I'm also using EmguCV. I notice that ...
Avatar image: store in database or on CDN? Ps( avatar is the users profile photo) ...
In my program i want the user to be able to take some images from a directory, and save them under a single file, that can be transferred to another computer possibly, and actually read and displayed(using the same program). How would i go about doing this, especially if i want to save other data along with it, perhaps objects and such....
After locating the mms thread to read how can the image content be extracted? I want to copy the image in an mms. Writing files in Android is well documented, I just need to know how to get the date to write. ...
In my iphone app,I want to let the user upload an image to his facebook photo Album and publish a story at the same time.The story's media field contains the uploaded image's url.I successly uploaded the photo and got the result's "link" and "src_small" property.But when I use FBStreamDialog to publish the story,I got: At last,I find ...
Hi all, I would like to know why the quality of my image is low in DOM PDF. The following image: http://img517.imageshack.us/img517/6996/top3.gif The borders are 1px and everything looks sharp. If I include the image in a HTML document with DOMPDF, everything works great, but the quality of the image is not really sharp. Output: img...
Hi How can I store Images, Videos and Audio via Django in a Mysql db? I know I can either store the link to the image, video, audio, or the image, video, audio itself. But how does this exactly work. I know about the models and how they create tables via the manage.py. But is there a good tutorial on how to create an image (e.g. jp...
Hello. There's a need to transform .svg files and save em either in .svg or jpeg format. The problems with ImageMagick is that it saves transformed files on white background and I deadly need it on transparent. Any suggestions with other tools or clear php? Would really appreciate it. ...
I have a sqlite db from where i am retrieving images. I have to display those images into a windows datagrid. For binding , I have Class Called COntacts , given below namespace ContactManager.Core { public class Contacts { private long _id = 0; public long Id { get { return _id; } ...
Hello! I need to overlay two PNG images and see this in IE6. Simple overlay like: <div style="position: relative; width: 150px; height: 300px;"> <img src="im1.png" alt="" style="position: absolute; top: 0; left: 0;"> <img src="im2.png" alt="" style="position: absolute; top: 0; left: 0;"> </div> works only for 256 color images, it do...
Hello all, I have a web site on Shared Hosted Server. They have a hard limit of 50,000 files. I have a while to go yet, but my site allows Image (jpg), file uploads, does anyone know any special tricks to help me get some of my file count back by storing multi image files in one file. Most of the image files are under about 300k, but...
Hi, I have an html page where I put in a text box an animal species. So I would extract from wikipedia an image of it and load in a How I can do it? Thanks. ...
In my Canvas, I have an image object. I haven't set a source in it, but it has coordinates and a size. The tag is: <Image Canvas.Top="50" Canvas.Left="20" Height="68" Width="110" HorizontalAlignment="Left" Name="image1" Stretch="Fill" VerticalAlignment="Top" /> Here's the problem: When I move the mouse over it, I want to find it. With ...
Here's a bit of history first: Recently finished an application that allows me to upload images and store them in a directory, it also stores the information of that file in a database. Database stores the location, name and gives it an ID (auto_increment). Okay, so what I'm doing now is allowing people to insert images into posts. Thro...