www.gusucode.com > visionhdl工具箱matlab源码程序 > visionhdl/visionhdl/+visionhdl/en/MedianFilter.m
classdef MedianFilter< visionhdl.internal.abstractLineMemoryKernel & matlab.system.mixin.Propagates & matlab.system.mixin.CustomIcon & matlab.system.mixin.Nondirect
%MedianFilter Performs median filtering of the input image.
% medianFilt = visionhdl.MedianFilter returns a System object,
% medianFilt, that performs two-dimensional median filtering of an
% input stream based on the input control signals.
%
% medianFilt = visionhdl.MedianFilter('PropertyName',PropertyValue,...)
% returns a median filter System object, medianFilt, with each specified
% property set to the specified value.
%
% medianFilt = visionhdl.MedianFilter(SIZE,'PropertyName',PropertyValue,...)
% returns a median filter System object, medianFilt, with the
% NeighborhoodSize property set to SIZE and other specified properties
% set to the specified values.
%
% Step method syntax:
% [pixOut,CtrlOut] = step(medianFilt,pixIn,CtrlIn) returns a median
% value of NeighborhoodSize based on input data and control signals.
% ctrlIn and ctrlOut are structures consisting of five control
% signals. See also <a href="matlab:doc visionhdl.FrameToPixels">visionhdl.FrameToPixels</a> or <a href="matlab:doc pixelcontrolstruct">pixelcontrolstruct</a>.
%
% System objects may be called directly like a function instead of using
% the step method. For example, y = step(obj, x) and y = obj(x) are
% equivalent.
%
% MedianFilter methods:
%
% step - See above description for use of this method
% release - Allow property value and input characteristics changes
% clone - Create median filter object with same property values
% isLocked - Locked status (logical)
%
% MedianFilter properties:
%
% NeighborhoodSize - Size of neighborhood to compute the median
% PaddingMethod - How to pad boundary of input image
% PaddingValue - Constant value with which to pad image
% LineBufferSize - Line buffer size
%
% % EXAMPLE:
% % Perform median filtering on an image with salt and pepper noise.
% frm2pix = visionhdl.FrameToPixels(...
% 'VideoFormat','custom',...
% 'ActivePixelsPerLine',32,...
% 'ActiveVideoLines',18,...
% 'TotalPixelsPerLine',42,...
% 'TotalVideoLines',28,...
% 'StartingActiveLine',6,...
% 'FrontPorch',5);
% [actPixPerLine,actLine,numPixPerFrm] = getparamfromfrm2pix(frm2pix);
%
% pix2frm = visionhdl.PixelsToFrame(...
% 'VideoFormat','custom',...
% 'ActivePixelsPerLine',actPixPerLine,...
% 'ActiveVideoLines',actLine);
%
% medianFilt = visionhdl.MedianFilter;
%
% frmFull = imread('rice.png');
% frmIn = imnoise(frmFull(74:73+actLine,104:103+actPixPerLine),'salt & pepper');
% imshow(frmIn);
%
% pixOutVec = zeros(numPixPerFrm,1,'uint8');
% ctrlOutVec = repmat(pixelcontrolstruct,numPixPerFrm,1);
%
% [pixInVec,ctrlInVec] = step(frm2pix,frmIn);
% for p = 1:numPixPerFrm
% [pixOutVec(p),ctrlOutVec(p)] = step(medianFilt,pixInVec(p),ctrlInVec(p));
% end
% [frmOut,frmValid] = step(pix2frm,pixOutVec,ctrlOutVec);
%
% if frmValid
% figure;
% imshow(frmOut);
% end
%
% See also medfilt2.
% Copyright 2014-2016 The MathWorks, Inc.
methods
function out=MedianFilter
%MedianFilter Performs median filtering of the input image.
% medianFilt = visionhdl.MedianFilter returns a System object,
% medianFilt, that performs two-dimensional median filtering of an
% input stream based on the input control signals.
%
% medianFilt = visionhdl.MedianFilter('PropertyName',PropertyValue,...)
% returns a median filter System object, medianFilt, with each specified
% property set to the specified value.
%
% medianFilt = visionhdl.MedianFilter(SIZE,'PropertyName',PropertyValue,...)
% returns a median filter System object, medianFilt, with the
% NeighborhoodSize property set to SIZE and other specified properties
% set to the specified values.
%
% Step method syntax:
% [pixOut,CtrlOut] = step(medianFilt,pixIn,CtrlIn) returns a median
% value of NeighborhoodSize based on input data and control signals.
% ctrlIn and ctrlOut are structures consisting of five control
% signals. See also <a href="matlab:doc visionhdl.FrameToPixels">visionhdl.FrameToPixels</a> or <a href="matlab:doc pixelcontrolstruct">pixelcontrolstruct</a>.
%
% System objects may be called directly like a function instead of using
% the step method. For example, y = step(obj, x) and y = obj(x) are
% equivalent.
%
% MedianFilter methods:
%
% step - See above description for use of this method
% release - Allow property value and input characteristics changes
% clone - Create median filter object with same property values
% isLocked - Locked status (logical)
%
% MedianFilter properties:
%
% NeighborhoodSize - Size of neighborhood to compute the median
% PaddingMethod - How to pad boundary of input image
% PaddingValue - Constant value with which to pad image
% LineBufferSize - Line buffer size
%
% % EXAMPLE:
% % Perform median filtering on an image with salt and pepper noise.
% frm2pix = visionhdl.FrameToPixels(...
% 'VideoFormat','custom',...
% 'ActivePixelsPerLine',32,...
% 'ActiveVideoLines',18,...
% 'TotalPixelsPerLine',42,...
% 'TotalVideoLines',28,...
% 'StartingActiveLine',6,...
% 'FrontPorch',5);
% [actPixPerLine,actLine,numPixPerFrm] = getparamfromfrm2pix(frm2pix);
%
% pix2frm = visionhdl.PixelsToFrame(...
% 'VideoFormat','custom',...
% 'ActivePixelsPerLine',actPixPerLine,...
% 'ActiveVideoLines',actLine);
%
% medianFilt = visionhdl.MedianFilter;
%
% frmFull = imread('rice.png');
% frmIn = imnoise(frmFull(74:73+actLine,104:103+actPixPerLine),'salt & pepper');
% imshow(frmIn);
%
% pixOutVec = zeros(numPixPerFrm,1,'uint8');
% ctrlOutVec = repmat(pixelcontrolstruct,numPixPerFrm,1);
%
% [pixInVec,ctrlInVec] = step(frm2pix,frmIn);
% for p = 1:numPixPerFrm
% [pixOutVec(p),ctrlOutVec(p)] = step(medianFilt,pixInVec(p),ctrlInVec(p));
% end
% [frmOut,frmValid] = step(pix2frm,pixOutVec,ctrlOutVec);
%
% if frmValid
% figure;
% imshow(frmOut);
% end
%
% See also medfilt2.
end
function OddEvenMerge(in) %#ok<MANU>
end
function basicsort(in) %#ok<MANU>
% sort 3, 5, 7, 9, 11, 13 elements using the best-known approach
% http://www.angelfire.com/blog/ronz/Articles/999SortingNetworksReferen.html
% merge table
end
function compare_exchange(in) %#ok<MANU>
end
function createParamWithDatatype(in) %#ok<MANU>
end
function finalCompare(in) %#ok<MANU>
end
function getExecutionSemanticsImpl(in) %#ok<MANU>
% works in both classic and synchronous subsystems
end
function getHeaderImpl(in) %#ok<MANU>
%getHeaderImpl Return header for object display
end
function getIconImpl(in) %#ok<MANU>
end
function getInputNamesImpl(in) %#ok<MANU>
end
function getNumInputsImpl(in) %#ok<MANU>
end
function getNumOutputsImpl(in) %#ok<MANU>
end
function getOutputDataTypeImpl(in) %#ok<MANU>
end
function getOutputNamesImpl(in) %#ok<MANU>
end
function getOutputSizeImpl(in) %#ok<MANU>
end
function isInactivePropertyImpl(in) %#ok<MANU>
% switch prop
end
function isOutputComplexImpl(in) %#ok<MANU>
end
function isOutputFixedSizeImpl(in) %#ok<MANU>
end
function loadObjectImpl(in) %#ok<MANU>
end
function medianCore(in) %#ok<MANU>
end
function outputImpl(in) %#ok<MANU>
% outputImpl: send output, no state update
% control signal generation
end
function resetImpl(in) %#ok<MANU>
% resetImpl
% since the states have already been appropriately sized by
% setupImpl, we just need to initialize them
end
function saveObjectImpl(in) %#ok<MANU>
% Save the public properties
end
function setupImpl(in) %#ok<MANU>
end
function showSimulateUsingImpl(in) %#ok<MANU>
end
function startFrameCleanup(in) %#ok<MANU>
end
function startFrameCleanupOutputs(in) %#ok<MANU>
end
function updateImpl(in) %#ok<MANU>
% updateImpl: no output, only state update
end
end
methods (Abstract)
end
properties
%LineBufferSize Line buffer size
% Specify the size of the line buffer. The value should be greater
% than or equal to the number of active pixels per line.
% The default value of this property is 2048.
LineBufferSize;
%NeighborhoodSize Neighborhood size
% Indicate how to specify the neighborhood size as one of [ '3x3'
% | '5x5' | '7x7' ].
NeighborhoodSize;
%PaddingMethod Padding method
% Indicate how to specify the padding method as one of [ 'Constant'
% | 'Replicate' | 'Symmetric' ].
PaddingMethod;
%PaddingValue Padding value
% Specify the padding value as an integer scalar greater than or equal to
% zero. This property is applicable when the PaddingMethod property
% is Constant'. The default value of this property is 0.
PaddingValue;
end
end