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This later ease later application of color style, layer management, and files/project sharing. For raster such as topographic data (SRTM, ETOPO, etc.), shaded relief, natural earth skin, ... use : QGis (1.6) > Raster > Merge > (merge window pop up) > Input files : (browse then select your files) > Output file: (browse then select your folder)
The GNU Image Manipulation Program, commonly known by its acronym GIMP (/ ɡ ɪ m p / ⓘ GHIMP), is a free and open-source raster graphics editor [3] used for image manipulation (retouching) and image editing, free-form drawing, transcoding between different image file formats, and more specialized tasks. It is extensible by means of plugins ...
The compressed files can be opened as normal image files. Since version 4, the image data can be compressed by zlib instead. The XCF file format is backward compatible (all versions of GIMP can open earlier versions' files) and in some cases, forward compatible. For example, GIMP 2.0 can save text in text layers while GIMP 1.2 cannot.
In graphics software, layers are the different levels at which one can place an object or image file. In the program, layers can be stacked, merged, or defined when creating a digital image. Layers can be partially obscured allowing portions of images within a layer to be hidden or shown in a translucent manner within another image.
Select all the features in the 4 layers (Ctrl+A) and Paste them (Ctrl+V) in the new layer. Go to Tools -> Edit Geometry -> Convert -> Polygonize and check Node input before polygonizing . Delete the "Dangles" and "Lands" layers and move the newly generated layer up in the list.
The top "layer" is not necessarily a layer in the application; it may be applied with a painting or editing tool. The top "layer" also is called the "blend layer" and the "active layer". In the formulas shown on this page, values go from 0.0 (black) to 1.0 (white).
Once the image is selected, it may be copied and pasted into another section of the same file, or into a separate file. The selection may also be saved in what is known as an alpha channel. A popular way to create a composite image is to use transparent layers. The background image is used as the bottom layer, and the image with parts to be ...
Improved layer search: search for a specific font; find virtual copies (layer clones). Layer tool: selected bitmap areas can be moved or copied directly without the need to create duplicate layers; XCF import (GIMP file format) FITS and SER import; Many user interface and workflow improvements