RawTherapee

RawTherapee is a free open source tool for photo editing.

These are some features of this tool:

High Image Quality

• 96-bit (floating point) processing engine.
• Non-destructive editing.
• Get the most details and least artifacts from your raw photos thanks to modern and traditional demosaicing algorithms: AMaZE, DCB, AHD, EAHD, HPHD, IGV, LMMSE, VNG4, Mono and Fast.
• Advanced color handling from white balance to HSV (Hue-Saturation-Value) curves, color toning and color management.
• Powerful CIE Color Appearance Model 2002 (CIECAM02) module.
• Enhanced exposure and tonality tools: tone and Lab curves, highlights and shadows tools, tone mapping (HDR-like effect), etc.
• Multiple denoising methods: luminance, chrominance (both rewritten in 2012), impulse (for salt and pepper noise) noise reduction.
• Several tools to enhance details: unsharp mask, RL deconvolution, contrast by detail levels. 
  
  
  Efficiency
  
• Multi-threaded algorithms for high performance (RawTherapee can utilize modern processor features, like SSE).
• Quick thumbnails load lightning fast and are replaced later with live thumbnails.
• Batch processing: convert all the developed images at once without loading the processor while you work.
• Copy/paste editing parameters from one file to many other. Partially copying and/or pasting is also possible.
  
• Basic tools immediately at your hands.
• Parallel editing of multiple images in separate editor tabs, and/or all at once from the file browser.
• An optional secondary display can be used.

Versatility

• Wide variety of supported cameras: almost all DSLRs and even some medium format bodies are supported.
• Can load most raw files including 16-, 24- and 32-bit raw HDR DNG images, as well as standard JPEG, PNG (8- and 16-bit) and TIFF (8-, 16- and 32-bit logluv) images.
• Can save JPEG, PNG (8- and 16-bit) and TIFF (8- and 16-bit) images.
• Advanced control over the algorithms with many fine-tuning parameters and curves.
• Can send to GIMP or the editing tool of your choice in one click (16-bit TIFF file).
• Command line usage besides the normal graphical interface.
  
• Various layouts: multiple tabs, single tab with filmstrip, vertical tab with filmstrip, dual monitor.

This wonderfull tool run on Windows, Linux and OSX


Download: http://rawtherapee.com/downloads

Install it in Ubuntu:

sudo add-apt-repository ppa:dhor/myway
sudo apt-get update 
sudo apt-get install rawtherapee

RPictureResize (v3.1)

RPictureResize is a simple and useful utility. It provides following features with just few clicks operation.

• Scan folders recursively and save pictures(JPG, BMP,GIF,PNG)
• Resize multiple pictures with given resolution in batch mode
• Save resized pictures from different folders into single one
• Save resized pictures to an new folder which is under original pictures
• Override resized pictures
• Slim. It’s just 158KB.
• Support both English & Traditional Chinese languages
• No installation is required.
• Free!

Requires: Microsoft .NET Framework 2.0.

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Just Color Picker (v2.3)

This free app allow you to get color code such as Color Picker discuss days ago.

• Five formats of colour value: HTML, RGB, HEX, HSB/HSV, and HSL.
• 3x, 9x and 15x magnifier to see precisely which color you want to pick.
• Picked colours history to save and reuse picked colours.
• RGB and RYB colour wheels to display triads and complementary colours.
• Two harmonious colour finders. With this feature you can easily find a good combination of colours, for example, for your web site. Just choose the primary colour of your design, and the colour picker will find the best colours harmoniously matching with it.
• RGB & HSV colour mixers to adjust and edit colours.
• Gradient between two latest-picked colours to allow you to pick a colour from a wide range between the chosen colours.
• Optional stay-on-top.
• User-defined hotkey to capture colour info (Alt+X by default).
• Copying the colour value or its selected part to the clipboard just by button click.
• Conversion of HTML, HEX or RGB colour codes into corresponding colours.
• No installation required. Just Color Picker is a portable application and can be run directly from a USB stick.
• Multilingual interface Bulgarian, Chinese (simpl.), Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Norwegian, Polish, Portuguese, Russian, Slovak, Spanish, Swedish, Thai and Turkish.

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Minh's Free PhotoResizer (v1.5)

Minh T. Nguyen's Free PhotoResizer allows you to easily batch-resize photos to a desired size.
Very simple, easy to use, it needs Microsoft .NET Framework

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Daz 3D

DAZ Studio is a free, feature rich 3D figure design and 3D animation tool that enables anyone to create stunning digital imagery. This is the perfect tool to design unique digital art and animation using virtual people, animals, props, vehicles, accessories, environments and more. Simply select your subject and/or setting, arrange accessories, setup lighting, and begin creating beautiful artwork.


The site contains tutorials and templates ready to download.
I remind you that it's free


http://www.daz3d.com/i.x/software/studio/

Tintii

Tinti is a free multi platform software that allows, once you have selected a photo, leaving the color to a portion and make the rest black and white to create artistic photos.

Automatically recognizes the colors and allows you to select only the parts that you want to color.

The software is free and runs on Windows, Linux and Mac

http://www.indii.org/software/tintii

ShapeCollage

This is a freeware app that works with windows , linux , mac.
It makes a collage from photos to design a shape.

You can export as PSD format so you can edit it with photoshop or gimp



http://www.shapecollage.com/

Red Eye Remover

L'utility di oggi permette , come suggerisce il nome ,di eliminare il fastidioso effetto occhi rossi, è gratuita e semplicissima da usare infatti bisogna solo selezionare la zona intorno agli occhi e in maniera automatica il programma correggierà il colore.

Ecco la schermata:

Vi rimando al sito del programma http://www.vicman.net/redeye/

per scaricare:

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Paint.NET

Paint.NET è un validissimo programma di fotoritocco gratuito scritto in C# e in C++
Tra le tantissime caratteristiche di questo programma vi sono:
-Tantissimi effetti disponibili
-Tantissimi strumenti per il disegno e fotoritocco
-Gestione dei livelli
-Gestione degli undo e redo (simile al photoshop)
-Una comunità in costante aumento con tutorial e nuovi plug-in
-E' gratuito :)


Vi segnalo i seguenti link:
Il forum con tutorial e plugin
il blog dell'autore
e ovviamente il link per scaricare il programma:

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