RawTherapee

rawtherapee
Raw Therapee (The Experimental Raw Photo Editor) is a software created by Gbor Horvth, which aims to enter the market for converters of RAW files now on the market. We start with one essential thing: it is free (but not open source), although it may contribute to the project with $ 5 in a completely voluntary.

For the installation does not exist deb, rpm or similar, just download the package for linux, extract it to the destination folder. Once running, the interface is very simple and immediate, modeled on the standard gnome. You can see immediately a style similar to commercial software: slidebar below, column editing on the right, left, and browsers, in this case, history of changes.

The method of conversion has been created by different algorithms than dcraw, which is used only to rebuild the thumbnails at the bottom of the screen. Once you select the folder from which the image will open to work with, we'll be ready!

The histogram can tell if the photo is properly exposed.
Crop size: using this option, you can inspect details of the image in total freedom without losing sight of the big picture. Very useful.
White balance (WB): here you can feel the lack of presets in most software, being present only room, and custom cars.
Exposure (Exposure): you can compensate the exposure (with the control clipping of the highlights), brightness and contrast levels of blacks and to this we add the two controls for fine control of the highlights and darker shades.
Highlight recovery: In case of overexposure recover lost highlights.
Shadow / Highlights: Allows you to adjust contrast and brightness to give three-dimensionality.
Sharpening: the control of the detail is well cared for quantity and quality of the filter. And 'possible to change various parameters, the most common radius, and threshold amount, to more details such as sharp edges, which keeps the background noise of the image content, by filtering halo. Carefully mixing the characteristics of the filter is possible to obtain excellent results.
Color Boost slider can be adjusted via two channels with the saturation of the colors Red-Green-Yellow and Blue. Unfortunately nothing to do with the color control that we find in Lightroom, which is a bit 'the new standard from this point of view. If we are not satisfied with the hue of the color-shift can alter them at will.
Noise Reduction Luminance and Color Noise reduction: are used for noise reduction.

In the second tab are other tools: crop tool, which already allows you to crop the image to standard aspect ratio (attention is impossible to move the trimming frame once positioned, you have to cancel and redraw it each time), the instrument for distortion and rotation (angle or by drawing a line).

The algorithm is called demosaicing EAHD, is based on Adaptive homogeneity-directed demosaicing algorithm developed by Hirakawa Keiro to this address there is a comparison of various methods of dcraw and RawTherapee.

The images can be saved in JPEG format 8, TIFF 8 / 16 bit PNG, EXIF data are only exported in jpeg files.

But now I've used recently, but it looks promising!

Posted under Photos , Technology

This post was written by admin on August 18, 2009

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