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  2. ImageJ - Wikipedia

    en.wikipedia.org/wiki/ImageJ

    It supports standard image processing functions such as logical and arithmetical operations between images, contrast manipulation, convolution, Fourier analysis, sharpening, smoothing, edge detection, and median filtering. It does geometric transformations such as scaling, rotation, and flips. The program supports any number of images ...

  3. Comparison gallery of image scaling algorithms - Wikipedia

    en.wikipedia.org/wiki/Comparison_gallery_of...

    The resulting image is larger than the original, and preserves all the original detail, but has (possibly undesirable) jaggedness. The diagonal lines of the "W", for example, now show the "stairway" shape characteristic of nearest-neighbor interpolation. Other scaling methods below are better at preserving smooth contours in the image.

  4. Edge-preserving smoothing - Wikipedia

    en.wikipedia.org/wiki/Edge-preserving_smoothing

    Edge-preserving filters are designed to automatically limit the smoothing at “edges” in images measured, e.g., by high gradient magnitudes. For example, the motivation for anisotropic diffusion (also called nonuniform or variable conductance diffusion) is that a Gaussian smoothed image is a single time slice of the solution to the heat ...

  5. Edge enhancement - Wikipedia

    en.wikipedia.org/wiki/Edge_enhancement

    Edge enhancement is an image processing filter that enhances the edge contrast of an image or video in an attempt to improve its acutance (apparent sharpness).. The filter works by identifying sharp edge boundaries in the image, such as the edge between a subject and a background of a contrasting color, and increasing the image contrast in the area immediately around the edge.

  6. MeituPic - Wikipedia

    en.wikipedia.org/wiki/MeituPic

    MeituPic provides a number of photo-editing tools. The major functions are auto enhance, edit, enhance, filters, frames, magic brush, mosaic, text, and blur. [2]Auto enhance focuses on the nature of photos taken, while Edit includes functions of cropping, rotation, sharpening, and adjustment of ratio.

  7. Median filter - Wikipedia

    en.wikipedia.org/wiki/Median_filter

    Median filtering is one kind of smoothing technique, as is linear Gaussian filtering. All smoothing techniques are effective at removing noise in smooth patches or smooth regions of a signal, but adversely affect edges. Often though, at the same time as reducing the noise in a signal, it is important to preserve the edges.

  8. Bloom Image Editor - Wikipedia

    en.wikipedia.org/wiki/Bloom_Image_Editor

    Bloom Image Editor, formerly known as Ormr, [2] is a non-destructive, [3] [4] [5] node-based vector and raster image editor for Mac OS X, Windows, and Linux. [6] Bloom features selection, painting, retouching, color correction tools, as well as layer-based image editing. Every operation is preserved individually and is editable at any point in ...

  9. Python Imaging Library - Wikipedia

    en.wikipedia.org/wiki/Python_Imaging_Library

    PIL offers several standard procedures for image manipulation. These include: per-pixel manipulations, [7] masking and transparency handling, image filtering, such as blurring, contouring, smoothing, or edge finding, [8] image enhancing, such as sharpening, adjusting brightness, contrast or color, [9] adding text