Search Results

Search found 35124 results on 1405 pages for 'how to load image in c a'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 8/1405 | < Previous Page | 4 5 6 7 8 9 10 11 12 13 14 15  | Next Page >

  • Fastest Algorithm to scale down 32Bit RGB IMAGE.

    - by Sunny
    which algorithm to use to scale down 32Bit RGB IMAGE to custom resolution? Algorithm should average pixels. for example If I have 100x100 image and I want new Image of size 20x50. Avg of first five pixels of first source row will give first pixel of dest, And avg of first two pixels of first source column will give first dest column pixel. Currently what I do is first scale down in X resolution, and after that I scale down in Y resolution. I need one temp buffer in this method. Is there any optimized method that you know?

    Read the article

  • Image Application in WPF and Perfomance.

    - by Harsha
    Hello All, I am planning to build Image processing application using WPF. Brightness /Contrast and Histogram are main operation of this application. I have downloaded the application " Foundations: Bitmaps and Pixel Bits" from http://msdn.microsoft.com/en-us/magazine/cc534995.aspx . But when I tried to open the images which are more than 1200x1600, It is very slow. How to increase the performance. Is any one worked on Image processing in WPF. Please suggest me how to solve this perfomance issue in WPF for image(more than 1600x1200) operation. Thanks you, Harsha

    Read the article

  • Serverside image processing

    - by spol
    I am designing a web application that does server side image processing in real time. Processing tasks include applying different effects like grayscale, blur, oil paint, pencil sketch etc on images in various formats. I want to build it using java/servlets which I am already familiar with. I found 3 options, 1) Use pure java imaging libraries like java.awt or http://www.jhlabs.com/ip/index.html 2) Use command line tools like Gimp/ImageMagick 3) Use c,c++ image libraries that have java bindings. I don't know which of the above options is good keeping the performance in mind. It looks like option 2) and 3) are good performance wise, but I want to be sure before I rule out 1). I have also heard gimp cannot be run using command line unless gtk or xwindows is already installed on the server. Will there be any such problems with 2) or 3) while running them server side? Also please suggest any good image processing libraries for this purpose.

    Read the article

  • Image Uploading - security issues

    - by TenaciousImpy
    Hi, I'm developing an ASP.NET Web app and would like the user to be able to either upload an image from their local system, or pass in a URL to an image. The image can either be a JPG or PNG. What security issues should I be concerned about doing this? I've seen various ways of embedding code within JPG files. Are there any methods in C# (or external libraries) which can confirm that a file is a JPG/PNG, otherwise throw an error? At the very least, I'm making the directory which holds uploaded images non-browsable and putting a max size limit of 1mb, but I'd like to implement further checks. Thanks for any advice.

    Read the article

  • Wrong image dimensions when it's dynamically loaded on a page the 1st time

    - by Nikita Barsukov
    I have the following piece of Javascript code on my web-page var central_image = document.createElement("img") central_image.setAttribute("src", imgs[curr_image_no - 1]); central_image.setAttribute("name", "jpeg"); document.getElementById("photo").appendChild(central_image); central_image.onload = getDimensions(); //function that alerts image dimensions Now, when the central_image is loaded for the 1st time in Firefox, its height always equals to 0. In IE its dimensions are 28 x 30 pixels. When I reload image, its dimensions are OK in both browsers. I guess the problem is that function getDimensions() starts before image was loaded completely. How to change that?

    Read the article

  • Which image sharing websites supports file uploading dynamically via api

    - by KoolKabin
    Hi, I have been searching for image hosting website that displays images of a user in a nice and managed way. I want to upload the files to that image hosting website in my account of that website from a page in my website. i.e if i have a website abc.com then user browse my website abc.com. Uploads the file to my website. Now I want to transfer the uploaded file to the image hosting website so that it can be viewed by other users of that hosting website and get better visibility to world

    Read the article

  • image viewer: png vs gif

    - by David Oneill
    I have a bunch of files that have .png extension. However, some of them are actually gif files. Any of the files, I can open them w/ gimp or view them in firefox, but when I try to open them with the Eye of Gnome viewer, it gives an error "Could not load image: Fatal error reading PNG image file: Not a PNG file" Is there: Another image viewer that can open files with incorrect extensions that I could use as default? It would need to have the ability to zoom in and out on images, and scroll through all the images in a folder via arrow keys. An automated way to rename the files that are actually gif files to the correct extensions? Choice 2 is preferred, but I don't now how to tell what type they are. I would be able to put together a bash script to do the renaming if there is a command that could tell me what type they are.

    Read the article

  • Which image sharing websites supports file uploading dynamically via api

    - by KoolKabin
    I have been searching for image hosting website that displays images of a user in a nice and managed way. I want to upload the files to that image hosting website in my account of that website from a page in my website. i.e if i have a website abc.com then user browse my website abc.com. Uploads the file to my website. Now I want to transfer the uploaded file to the image hosting website so that it can be viewed by other users of that hosting website and get better visibility to world

    Read the article

  • Image creation performance / image caching

    - by Kilnr
    Hello, I'm writing an application that has a scrollable image (used to display a map). The map background consists of several tiles (premade from a big JPG file), that I draw on a Graphics object. I also use a cache (Hashtable), to prevent from having to create every image when I need it. I don't keep everything in memory, because that would be too much. The problem is that when I'm scrolling through the map, and I need an image that wasn't cached, it takes about 60-80 ms to create it. Depending on screen resolution, tile size and scroll direction, this can occur multiple times in one scroll operation (for different tiles). In my case, it often happens that this needs to be done 4 times, which introduces a delay of more than 300 ms, which is extremely noticeable. The easiest thing for me would be that there's some way to speed up the creation of Images, but I guess that's just wishful thinking... Besides that, I suppose the most obvious thing to do is to load the tiles predictively (e.g. when scrolling to the right, precache the tiles to the right), but then I'm faced with the rather difficult task of thinking up a halfway decent algorithm for this. My actual question then is: how can I best do this predictive loading? Maybe I could offload the creation of images to a separate thread? Other things to consider? Thanks in advance.

    Read the article

  • C# Image Deskew

    - by Brett
    Has anyone seen any image deskew algorithms in c#? I have found: http://www.codeproject.com/KB/graphics/Deskew_an_Image.aspx but unfortunately, it doesn't do very much for images without text. I am specifically trying to auto deskew an image of a book with solid edges, but minimal text. Has anyone seen anything that may be able to do this?

    Read the article

  • Float PPM image file format?

    - by Luca
    I've found a PPM image with the header starting with PF. The resolution number is stored in floating point (-1.000). No comments are inserted to get how it was produced. From the resolution, each pixel is composed by 12 bytes (4 bytes per component)... I suppose they are float or integer numbers. The problem is that I cannot get a clear image. Someone has already found this kind of images?

    Read the article

  • how does data clustering help in image or pattern recognition

    - by anon
    I have been playing around with different data clustering algorithms working on finding clusters between random data points represented an nodes, I keep reading that data clustering is used for image recognition. I am failing to make the connection, how does clustering data help in recognizing an image or in facial recognition. can someone explain this?

    Read the article

  • selecting the pixels from an image in opencv

    - by ajith
    hi everyone, this is refined version of my previous question http://stackoverflow.com/questions/2602628/computing-matting-laplacian-matrix-of-an-image actually i want to do following operation... summation for all k|(i,j)?wk [(Ii-µk)*(Ij-µk)]...where wk is 3X3 window & µk is mean of wk...here i dont know how to select Ii & Ij separately from an image which is 2 dimensional[Iij]...or does the eqn means anything else??please someone help me..

    Read the article

  • recognizing text effect on an image for photoshop

    - by Shishant
    Hello, I had my site designed through an designer, I have this image from it, I want to use same kind of image for other navigation menus which I want to add now, my designer is not supplying me with psd`s of it. How can I know what text effects and fonts I should use in photoshop to achieve the same kind of result? Thank You.

    Read the article

  • Resized image degrades in quality.

    - by Venkats
    I resized an image using Java2D Graphics class. But it doesn't look right. BufferedImage resizedImage = new BufferedImage(IMG_WIDTH, IMG_HEIGHT, type); Graphics2D g = resizedImage.createGraphics(); g.drawImage(originalImage, 0, 0, IMG_WIDTH, IMG_HEIGHT, null); g.dispose(); Is it possible to scale an image without introducing artifacts?

    Read the article

  • Linux Kernel not upgraded (from Ubuntu 12.04 to 12.10) - can't remove old kernels and can't install new apps

    - by Tony Breyal
    Question: How do I remove old kernel images which refuse to be removed? Context: Yesterday I upgraded Ubuntu from 12.04 to 12.10. However, the linux kernel has not upgraded from 3.2 to 3.5 as I would have expected. $ uname -r 3.2.0-32-generic $ uname -a Linux tony-b 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ cat /proc/version Linux version 3.2.0-32-generic (buildd@batsu) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 Not sure why that happened there. I wanted to install Audacity (v2.0.1-1_amd64) to edit a lecture audio file. When trying this operation through Ubuntu Software Center, it says that to install audacity, four items will need to be removed: linux-image-3.2.0-27-generic linux-image-3.2.0-29-generic linux-image-3.2.0-30-generic linux-image-3.2.0-31-generic So I click "Install Anyway" but it fails with the following output: installArchives() failed: (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 259675 files and directories currently installed.) Removing linux-image-3.2.0-27-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-27-generic /boot/vmlinuz-3.2.0-27-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-27-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-27-generic /boot/vmlinuz-3.2.0-27-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-27-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-27-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports is reached already Removing linux-image-3.2.0-29-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-29-generic /boot/vmlinuz-3.2.0-29-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-29-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-29-generic /boot/vmlinuz-3.2.0-29-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-29-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-29-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports is reached already Removing linux-image-3.2.0-30-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-30-generic /boot/vmlinuz-3.2.0-30-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-30-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-30-generic /boot/vmlinuz-3.2.0-30-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-30-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-30-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports is reached already Removing linux-image-3.2.0-31-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-31-generic /boot/vmlinuz-3.2.0-31-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-31-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-31-generic /boot/vmlinuz-3.2.0-31-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-31-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-31-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports is reached already Errors were encountered while processing: linux-image-3.2.0-27-generic linux-image-3.2.0-29-generic linux-image-3.2.0-30-generic linux-image-3.2.0-31-generic Error in function: Setting up grub-pc (2.00-7ubuntu11) ... /usr/sbin/grub-bios-setup: warning: Sector 32 is already in use by the program `FlexNet'; avoiding it. This software may cause boot or other problems in future. Please ask its authors not to store data in the boot track. Installation finished. No error reported. Generating grub.cfg ... dpkg: error processing grub-pc (--configure): subprocess installed post-installation script returned error exit status 1 It seems I need to remove the old linux images somehow. I have tried this through (1) Synaptic, (2) Ubuntu Tweak, and (3) Computer Janitor. The first two fail, whilst Computer Janitor won't even open. The output from Synaptic is: E: linux-image-3.2.0-27-generic: subprocess installed post-removal script returned error exit status 1 E: linux-image-3.2.0-29-generic: subprocess installed post-removal script returned error exit status 1 E: linux-image-3.2.0-30-generic: subprocess installed post-removal script returned error exit status 1 E: linux-image-3.2.0-31-generic: subprocess installed post-removal script returned error exit status 1 How do I remove these old images? Thank you kindly in advance for any help on this matter. P.S. Further information: $ dpkg --list | grep linux-image rH linux-image-3.2.0-27-generic 3.2.0-27.43 amd64 Linux kernel image for version 3.2.0 on 64 bit x86 SMP rH linux-image-3.2.0-29-generic 3.2.0-29.46 amd64 Linux kernel image for version 3.2.0 on 64 bit x86 SMP rH linux-image-3.2.0-30-generic 3.2.0-30.48 amd64 Linux kernel image for version 3.2.0 on 64 bit x86 SMP rH linux-image-3.2.0-31-generic 3.2.0-31.50 amd64 Linux kernel image for version 3.2.0 on 64 bit x86 SMP ii linux-image-3.2.0-32-generic 3.2.0-32.51 amd64 Linux kernel image for version 3.2.0 on 64 bit x86 SMP ii linux-image-3.5.0-17-generic 3.5.0-17.28 amd64 Linux kernel image for version 3.5.0 on 64 bit x86 SMP ii linux-image-extra-3.5.0-17-generic 3.5.0-17.28 amd64 Linux kernel image for version 3.5.0 on 64 bit x86 SMP ii linux-image-generic 3.5.0.17.19 amd64 Generic Linux kernel image But trying to remove using the command line fails too e.g.: $ sudo apt-get purge linux-image-3.2.0-27-generic Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED linux-image-3.2.0-27-generic linux-image-3.2.0-29-generic linux-image-3.2.0-30-generic linux-image-3.2.0-31-generic 0 upgraded, 0 newly installed, 4 to remove and 1 not upgraded. 5 not fully installed or removed. After this operation, 597 MB disk space will be freed. Do you want to continue [Y/n]? Y (Reading database ... 259675 files and directories currently installed.) Removing linux-image-3.2.0-27-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-27-generic /boot/vmlinuz-3.2.0-27-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-27-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-27-generic /boot/vmlinuz-3.2.0-27-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-27-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-27-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports has already been reached Removing linux-image-3.2.0-29-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-29-generic /boot/vmlinuz-3.2.0-29-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-29-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-29-generic /boot/vmlinuz-3.2.0-29-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-29-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-29-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports has already been reached Removing linux-image-3.2.0-30-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-30-generic /boot/vmlinuz-3.2.0-30-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-30-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-30-generic /boot/vmlinuz-3.2.0-30-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-30-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-30-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports has already been reached Removing linux-image-3.2.0-31-generic ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-31-generic /boot/vmlinuz-3.2.0-31-generic update-initramfs: Deleting /boot/initrd.img-3.2.0-31-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-31-generic /boot/vmlinuz-3.2.0-31-generic Generating grub.cfg ... run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/linux-image-3.2.0-31-generic.postrm line 328. dpkg: error processing linux-image-3.2.0-31-generic (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports has already been reached Errors were encountered while processing: linux-image-3.2.0-27-generic linux-image-3.2.0-29-generic linux-image-3.2.0-30-generic linux-image-3.2.0-31-generic E: Sub-process /usr/bin/dpkg returned an error code (1)

    Read the article

  • Ubuntu doesn't load, can't even open a terminal to type commands, even after boot repair

    - by Sky
    When I start Ubuntu I only get my desktop picture and am unable to open a terminal to type any commands. When I try a Guest session all I get is a red Ubuntu backdrop, nothing else. I tried boot repair but no improvement. Summary information following boot repair: http://paste.ubuntu.com/8109809/ I can paste some of it here if someone can tell me which part of it is relevant. This all occurred after I tried to remove compizconfig (which I might not have completed), because it's been using up my CPU (running at 50-60% with compiz at the top in System monitor. My laptop has been running very slow since installing Ubuntu so I've been trying to fix that, also website videos play slow and the startup of Ubuntu has been faulty. I also installed a proprietory Nvidia driver (304) before this launcher issue occurred, in an effort to fix my video problem (didn't help anything). Laptop is Dell 620m with Intel Core 2; 1.83GHz, 2 GB RAM, Ubuntu 14.04 (new to Linux); 66GB Ubuntu partition. Everything works fine on the small XP partition of my laptop, but I've moved all my files to the larger Ubuntu portion. I wanted to try some answers I found to similar questions but they all seem to involve commands in a terminal and I can't open a terminal. How can I get the launcher back, along with access to my programmes etc? Thank you for any help.

    Read the article

  • loaded image cannot be seen on the screen

    - by Oki
    I load many images simultaneously with different Loader class. When loaded I add content of loaders to the movieclips which are child of some other movieclip which is child other... I check that images are loaded addChild method is called, but loaded images cannot be seen on the screen. Actually, sometimes images can be seen, but sometimes cannot be seen. Do I need to rerender some DisplayObject? Something similar...

    Read the article

  • HTML: Creating tool in HTML which enables to mark on an image

    - by A.Amidi
    I am creating an online survey-monkey for conducting a research. Participants are asked to mark the preferred places for building the parking on the map (image). In other words, participants should be able to mark on the image (map) wherever they want and subsequently I could have an access to the saved locations after survey. I am writing to know how I can provide tools for participants to draw or mark on the map by using HTML codes.

    Read the article

  • Could anyone suggest me some image manipulation techniques to be added to my image viewer??

    - by avi
    Hello, I'm trying to develop a small image viewer just as an exercise to sharpen my programming skills. So far , all the features that I could think of adding to it are zooming in and out, inverting the colors of the image and resizing. Could anyone suggest me a few more features?? You are also welcome to suggest anything which has not been implemented yet. I would like to take it as a learning challenge. Thanks.

    Read the article

  • Free file/image hosting website with api [closed]

    - by KoolKabin
    Possible Duplicate: Which image sharing websites supports file uploading dynamically via api I would like to know is there any free images/file hosting website which will allow users to upload image to its website using api? I tried with imageshack.us its fine only problem with it is that i could not make upload the files under my account in imageshack . URL: http://www.outsourcingnepal.com/ImageShack/Uploader/

    Read the article

  • ubuntu image size 732 mb - too big for cd

    - by memius
    i have an old pc that can't handle a boot stick install, so i have to create an actual, old fashioned boot cd. however, the image size for ubuntu 12.04 is 732mb, which is too large for cds, which can hold only 700mb. the maintainers of ubuntu 12.04 say the image size will never go over 700mb, and indeed, the download size seemed to be 689mb. Brasero says it won't burn the cd because the file is too big what's going on?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 4 5 6 7 8 9 10 11 12 13 14 15  | Next Page >