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2. Comparison of raster graphics editors - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_raster...

   Free photo editor Madhavan Lakshminarayanan April 14, 2009: 2022.6.1 June 11, 2022: Free MIT: F-Spot: Image viewer and organizer for GNOME: Ettore Perazzoli 2005: 0.8.2 [5] [6] [7] 2010-12-19 Free MIT: G'MIC: Free command line software for 2D or 3D image processing and visualization David Tschumperlé October 2008: 3.4.3 [8] 2024-10-11 Free ...

3. Kernel (image processing) - Wikipedia

   en.wikipedia.org/wiki/Kernel_(image_processing)

   2D convolution with an M × N kernel requires M × N multiplications for each sample (pixel). If the kernel is separable, then the computation can be reduced to M + N multiplications. Using separable convolutions can significantly decrease the computation by doing 1D convolution twice instead of one 2D convolution. [2]

4. Comparison of vector graphics editors - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_vector...

   It offers features such as vector editing, prototyping, and collaboration tools. SVG-edit is a FOSS web-based, JavaScript-driven SVG editor that works in any modern browser. Synfig Studio (also known as Synfig) is a free and open-source 2D vector graphics and timeline-based computer animation program created by Robert Quattlebaum. Synfig is ...

5. 2D computer graphics - Wikipedia

   en.wikipedia.org/wiki/2D_computer_graphics

   The name raster graphics editor is sometimes used to contrast this approach to that of general editors which also handle vector graphics. One of the first popular image editors was Apple's MacPaint, companion to MacDraw. Modern examples are the free GIMP editor, and the commercial products Photoshop and Paint Shop Pro.

6. Image derivative - Wikipedia

   en.wikipedia.org/wiki/Image_derivative

   Image derivatives can be computed by using small convolution filters of size 2 × 2 or 3 × 3, such as the Laplacian, Sobel, Roberts and Prewitt operators. [1] However, a larger mask will generally give a better approximation of the derivative and examples of such filters are Gaussian derivatives [ 2 ] and Gabor filters . [ 3 ]

7. Gabor filter - Wikipedia

   en.wikipedia.org/wiki/Gabor_filter

   Its impulse response is defined by a sinusoidal wave (a plane wave for 2D Gabor filters) multiplied by a Gaussian function. [6] Because of the multiplication-convolution property (Convolution theorem), the Fourier transform of a Gabor filter's impulse response is the convolution of the Fourier transform of the harmonic function (sinusoidal function) and the Fourier transform of the Gaussian ...