HDR Imaging In Linux

This tool enables you to experiment with high-dynamic range lighting in a photo or 3D image that might be used in a game or 3D world. The options for controlling HDR lighting are simple: adjust a slider for gamma correction, load a tonal mapping tool to adjust light sources and other variables. Then, save your work for modeling in a 3D world.

snap-qt4_2 Qtpfsgui is an open source graphical user interface application that aims to provide a workflow for HDR imaging.

Supported HDR formats:

  • OpenEXR (extension: exr)
  • Radiance RGBE (extension: hdr)
  • Tiff formats: 16bit, 32bit (float) and LogLuv (extension: tiff)
  • Raw image formats (extension: various)
  • PFS native format (extension: pfs)

Supported LDR formats:

  • JPEG, PNG, PPM, PBM, TIFF(8 bit)

Supported features:

  • Create an HDR file from a set of images (formats: JPEG, TIFF 8bit and 16bit, RAW) of the same scene taken at different exposure setting.
  • Save and load HDR images.
  • Rotate and resize HDR images.
  • Tone map HDR images.
  • Copy exif data between sets of images.

Qtpfsgui is available for Linux, Windows and Mac OS X

Why this name?
Qt: the program uses Qt4 to show its graphical widgets.
pfs: the main backend library and original source code base.
gui: this stands simply for graphical user interface.

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The Power of Photoshop in Just 3 Minutes

Just see this video and you can understand how powerful could be Photoshop when you know how to use it.


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List of Free Stock Images for Your Site or Blog

Part 1.

Maybe you need some images for your website or blog, but sometimes you have to pay for them so here is a list of many sites where you can get the image you are looking for, for free.

    FreeFoto.com is made up of 111245 images with 147 sections organized into 3154 categories. Is the largest collection of free photographs on the Internet (link back and attribution required).


    Kavewall If you are looking for images and textures in unique categories like tattoo, smoke, and food this is the correct place.


    Digital Dreamer Free, royalty-free stock images can be found here.


    FreePhotosBank. check back often because they have new images everyday.


    FreeDigitalPhotos.net. Thousands of royalty free photos for websites, PowerPoint presentations, newsletters, forums, blogs, schools and homework. Our images can also be used for artist’s reference, and video productions.


    PDPhoto.org. is a repository for free public domain photos.

    Visipix.com. All copyrights are free.

    Cepolina. Over 5000 free photos are available for download. Each photo can be saved in five formats (up to 1024X768 pixels). You can download any photo for private or commercial use.

    DexHause.com. Array of great images are found on this organized site.

    FreeStockImages.net Great collection of images but some you have to pay for them.

    TurboPhoto Browse and download 2,000 (3.4 GB) free stock images from 10 categories.

    Yotophoto is now indexing well over a quarter million Creative Commons, Public Domain, GNU FDL, and various other ‘copyleft’ images.

    Stockvault Browse and search the photo gallery of over 8.000 royalty free, high resolution stock photos, templates and logos to use in your personal and educational design projects.

    Dreamstime Most of the photos on this site cost a fee (some as low as $0.26/image).

    Open Stock Photography As of April 2007, the Wikimedia Commons, a central media archive operated by the Wikimedia Foundation, contains about 1,367,620 files* uploaded by over 30,000 registered users. Each of these files is available under a free content license or in the public domain; there are no restrictions of use beyond those relating to use of official insignia. Licenses which limit commercial use are considered non-free.

    Image After Search tons of free photos on this site while meeting other photography lovers on the forum.

    Unprofound.com Use the images however you want, just make sure you let them know where you’ve published it!

    Font Play This site has 10,000 free photos for you to use any way you want.

    Studio 25  Is a new site for photographers around the world. Due to the great demand for a professional online service that serves designers, agencies, publishing houses, studio25 came as a natural idea in the market.

    Vintage Pixels Is a large database of historical, high quality, free-for-use images which allows people to share their archived photos. You can download images for print, or use in graphic design, as well upload images to add to the ever growing album of vintage images. The best part - it’s all free!

    Abstract Influence Search for the stock images you want while talking about photography with other visitors on the site’s forum.

    Amygdela’s atmosphere The gallery is fully back online with photos, packed in an even sexier image gallery.

    Every Stock Photo is a search engine for creative commons photos.

    Photocase Was started 5 years ago by 4 graphic designers as a way for a handful of graphic designers to freely and easily share images between them. They shot their own photos, uploaded and shared them to create a little pool of reliable, unique, good-quality and–above all–free images that they could use in any given project.

    deviantART One of the biggest photo database on the internet, you can get royalty free images and some you have to pay for them.

    Technorati Tags: photoshop , images , free