AForge .net Framework 2.1.4最新版本

AForge.NET Framework 2.1.4 release notes ---------------------------------------- 01.09.2010. Version updates and fixes: * Fixed registered issues/requests: - Issue 139: Possible Type Improvement in CannyEdgeDetector.cs - Issue 142: Behaviour mismatch between SobelEdgeDetector.Apply and SobelEdgeDetector.ApplyInPlace - Issue 143: Off-by-one error in PointsCloud.GetCenterOfGravity - Issue 147: Perform SimpleQuadrilateralTransformation on entire image. - Issue 149: Round DoublePoint to IntPoint, rather than truncating. * General - Adding some unit test based on Gallio Automation Platform. The unit tests mostly cover new recently added features for now. See "Unit Tests\Read Me.txt" for additional information. - Adding initial version of IPPrototyper application (Image Processing Prototyper) - a tool which is aimed to help prototyping/testing of image processing and computer vision routines. * AForge - Added IntPoint.EuclideanNorm() and DoublePoint.EuclideanNorm() methods, which calculate point's distance to (0, 0) point. - Added DoublePoint.Round() method to round point to IntPoint using Math.Round(). * AForge.Math - Switching GeometryTools class to be public, which contains few tool methods to calculate angle between two vectors and angle between two lines. - Fixing bug of GetCenterOfGravity(), where first point was not taken into account. * AForge.Imaging - Fixing an old somehow survived typo - changing "FormatTransalations" to "FormatTranslations". This change may affect those users, who use the property. - Fixing a bug in line drawing (Drawing.Line()) - avoiding division by zero. - Adding UnmanagedImage.Collect8bppPixelValues() and UnmanagedImage.Collect16bppPixelValues() methods to collect pixels' values from the list of specified coordinates. - Adding SimpleQuadrilateralTransformation as replacement of QuadrilateralTransformationBilinear and QuadrilateralTransformationNearestNeighbor filters. The new filter does transformation as with interpolation, as without. - QuadrilateralTransformationBilinear and QuadrilateralTransformationNearestNeighbor are marked as deprecated and generate warning if used. But still work. - BaseQuadrilateralTransformationFilter is removed as no longer required. - Adding QuadrilateralTransformation - an implementation of quadrilateral transformation based on homogeneous transformation. - Adding BackwardQuadrilateralTransformation - an image processing routine to transform given source image into specified quadrilateral area of destination image. - Putting black rectangle around processing area, so result of edge detectors look the same in the case if Apply() or ApplyInPlace() methods are called (ApplyInPlace() was leaving some garbage from original image). - Extending DocumentSkewChecker and HoughLineTransformation to allow processing of specified rectangle only, so lines could be searched only in the area of interest. - DocumentSkewChecker: Replacing MinBeta and MaxBeta properties with single MaxSkewToDetect property, which covers both. Also removing cycled checking of lines' angles, since it is not required due to limited range of detection. * AForge.Video.DirectShow - Fixing disposing of AMMediaType. - Improving FileVideoSource, so it can play video files which have audio stream as their first stream (which becomes first output pin of IBaseFilter). First output pin was always taken before and used for connection with input pin of sample grabber. However it was failing in those cases, when first output pin had audio type. Now the code is changed to iterate through source's output pins searching for one, which can be connected with sample grabber. - Changing DirectShow related classes to use IMediaControl::Stop() method instead of IMediaControl::StopWhenReady() which allows data queuing, which does not seem to be required. * AForge.Controls - Adding addition "request to stop" volatile boolean variable in VideoSourcePlayer to avoid trying handle NewFrame event when WaitForStop() is already invoked, so rare deadlock is avoided. * Samples - Adding "IPPrototyper Sample" application - demonstrates usage of IPPrototype tool. AForge.NET Framework 2.1.3 release notes ---------------------------------------- 01.07.2010. Version updates and fixes: * Fixed registered issues/requests: - Issue 132: Adjustable Threshold for blob counter - Issue 135: Convert from Format16bppGrayScale to Format8bppIndexed is missing - Issue 136: Enhancement to disable reference clock on DirectShow graphs - Issue 137: Improvement request for svs - Issue 138: Enable amendment of Population size on the fly * AForge.Math - Adding interface for shape optimizers its 3 implementations: 1) FlatAnglesOptimizer - shape optimizer, which removes obtuse angles (close to flat) from a shape; 2) LineStraighteningOptimizer - shape optimizer, which removes points within close range to shapes' body; 3) ClosePointsMergingOptimizer - shape optimizer, which merges points within close distance to each other. - Added SimpleShapeChecker class for checking simple geometrical shapes. - Bug fix in GrahamConvexHull - don't process points with same coordinates as the first point. - Few updates to PointsCloud.FindQuadrilateralCorners(): 1) Bug fix - wrong points were used to compare distances between points; 2) Using relative distortion limit instead of hard-coded constants for checking if certain points are far away enough; 3) Searching first point as the furthest from shape's centre, instead of from (0, 0) point of coordinates system. * AForge.Imaging - Fixing SusanCornersDetector - don't dispose internal grey image in the case if greyscale image was given as input. - Increasing size limits for convolution's kernel size and structuring element of morphological operators. The limit is set to 99. The benefit of such big kernels is not clear, but if users want it and ready to wait until such lengthy image processing is done, then why not to give it to them. - Added background threshold property to blob counters, so thresholding step could be skipped in many cases. - Adding LevelsLinear16bpp image processing filter, which is similar to LevelsLinear, but designed for images with 16 bpp planes - 16 bpp grayscale or 48/64 bpp images. - Added two methods into AForge.Imaging.Image class: Convert16bppTo8bpp() and Convert8bppTo16bpp() which perform conversion of images with 16 bpp color planes to images with 8 bpp color planes and vice versa. - Few minor improvements to CannyEdgeDetector: changed from double to int type for those variables, which are really integer; removed incrementing index variable, which is not used inside of a loop; clarified documentation about hysteresis. * AForge.Video - Putting check of IsRunning property into Start() method of all video sources, so it checks if video source is really running or not. Checking thread variable for null was not a good check if user calls SignalToStop() without further WaitForStop(). * AForge.Video.DirectShow - Merging the code contributed by Jeremy Noring, which allows to disable reference clock of a DirectShow graph allowing to process video files as fast as possible. * AForge.Genetic - Fixing Population.FindBestChromosome() method to make sure that a chromosome will be selected even if all chromosome have fitness value equal to 0. - Added Population.Resize() method which allows to resize genetic population during its lifetime. * AForge.Robotics.Surveyor -