gusucode.com > vision工具箱matlab源码程序 > vision/+vision/en/GeometricShearer.m
classdef GeometricShearer< matlab.system.SFunSystem
%GeometricShearer Shift rows or columns of image by linearly varying offset
% H = vision.GeometricShearer returns a System object, H, that shifts the
% rows or columns of an image by gradually increasing distance left or
% right or up or down.
%
% H = vision.GeometricShearer('PropertyName', PropertyValue, ...) returns
% a geometric shear object, H, with each specified property set to the
% specified value.
%
% Step method syntax:
%
% Y = step(H, IMG) shifts the input, IMG, and returns the shifted image,
% Y, with the shear values specified by the Values property.
%
% Y = step(H, IMG, S) uses the two-element vector, S, as the number of
% pixels by which to shift the first and last rows or columns of IMG,
% when the ValuesSource property is 'Input port'.
%
% 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.
%
% GeometricShearer methods:
%
% step - See above description for use of this method
% release - Allow property value and input characteristics changes
% clone - Create geometric shear object with same property values
% isLocked - Locked status (logical)
%
% GeometricShearer properties:
%
% Direction - Direction of applying offset
% OutputSize - Output size as full or same as input image size
% ValuesSource - Source of shear values
% Values - Shear values in pixels
% MaximumValue - Maximum number of pixels by which to shear image
% BackgroundFillValue - Value of pixels outside image
% InterpolationMethod - Interpolation method used to shear image
%
% This System object supports fixed-point operations. For more
% information, type vision.GeometricShearer.helpFixedPoint.
%
% % EXAMPLE #1: Apply a horizontal shear to an image.
% hshear = vision.GeometricShearer('Values',[0 20]);
% img = im2single(checkerboard);
% outimg = step(hshear,img);
% subplot(2,1,1), imshow(img);
% title('Original image');
% subplot(2,1,2), imshow(outimg);
% title('Output image');
%
% See also imwarp, imresize
% Copyright 2004-2016 The MathWorks, Inc.
methods
function out=GeometricShearer
%GeometricShearer Shift rows or columns of image by linearly varying offset
% H = vision.GeometricShearer returns a System object, H, that shifts the
% rows or columns of an image by gradually increasing distance left or
% right or up or down.
%
% H = vision.GeometricShearer('PropertyName', PropertyValue, ...) returns
% a geometric shear object, H, with each specified property set to the
% specified value.
%
% Step method syntax:
%
% Y = step(H, IMG) shifts the input, IMG, and returns the shifted image,
% Y, with the shear values specified by the Values property.
%
% Y = step(H, IMG, S) uses the two-element vector, S, as the number of
% pixels by which to shift the first and last rows or columns of IMG,
% when the ValuesSource property is 'Input port'.
%
% 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.
%
% GeometricShearer methods:
%
% step - See above description for use of this method
% release - Allow property value and input characteristics changes
% clone - Create geometric shear object with same property values
% isLocked - Locked status (logical)
%
% GeometricShearer properties:
%
% Direction - Direction of applying offset
% OutputSize - Output size as full or same as input image size
% ValuesSource - Source of shear values
% Values - Shear values in pixels
% MaximumValue - Maximum number of pixels by which to shear image
% BackgroundFillValue - Value of pixels outside image
% InterpolationMethod - Interpolation method used to shear image
%
% This System object supports fixed-point operations. For more
% information, type vision.GeometricShearer.helpFixedPoint.
%
% % EXAMPLE #1: Apply a horizontal shear to an image.
% hshear = vision.GeometricShearer('Values',[0 20]);
% img = im2single(checkerboard);
% outimg = step(hshear,img);
% subplot(2,1,1), imshow(img);
% title('Original image');
% subplot(2,1,2), imshow(outimg);
% title('Output image');
%
% See also imwarp, imresize
end
function helpFixedPoint(in) %#ok<MANU>
%helpFixedPoint Display vision.GeometricShearer System object
% fixed-point information
% vision.GeometricShearer.helpFixedPoint displays information
% about fixed-point properties and operations of the
% vision.GeometricShearer System object.
end
function isInactivePropertyImpl(in) %#ok<MANU>
end
function setPortDataTypeConnections(in) %#ok<MANU>
end
end
methods (Abstract)
end
properties
%AccumulatorDataType Accumulator word- and fraction-length designations
% Specify the accumulator fixed-point data type as one of [{'Same as
% product'} | 'Same as first input' | 'Custom'].
AccumulatorDataType;
%BackgroundFillValue Value of pixels outside image
% Specify the value of pixels that are outside the image as a numeric
% scalar, or a numeric vector of same length as the third dimension of
% the input image. The default value of this property is 0. This
% property is tunable.
BackgroundFillValue;
%CustomAccumulatorDataType Accumulator word and fraction lengths
% Specify the accumulator fixed-point type as an auto-signed scaled
% numerictype object. This property is applicable when the
% AccumulatorDataType property is 'Custom'. The default value of this
% property is numerictype([],32,10).
%
% See also numerictype.
CustomAccumulatorDataType;
%CustomOutputDataType Output word and fraction lengths
% Specify the output fixed-point type as an auto-signed scaled
% numerictype object. This property is applicable when the
% OutputDataType property is 'Custom'. The default value of this
% property is numerictype([],32,10).
%
% See also numerictype.
CustomOutputDataType;
%CustomProductDataType Product word and fraction lengths
% Specify the product fixed-point type as an auto-signed scaled
% numerictype object. This property is applicable when the
% InterpolationMethod property is either 'Bilinear' or 'Bicubic', and
% the ProductDataType property is 'Custom'. The default value of this
% property is numerictype([],32,10).
%
% See also numerictype.
CustomProductDataType;
%CustomValuesDataType Shear values word and fraction lengths
% Specify the shear values fixed-point type as an auto-signed
% numerictype object. This property is applicable when the ValuesSource
% property is 'Property' and the ValuesDataType property is 'Custom'.
% The default value of this property is numerictype([],32,10).
%
% See also numerictype.
CustomValuesDataType;
%Direction Direction of applying offset
% Specify the direction of linearly increasing the offset as one of
% [{'Horizontal'} | 'Vertical']. Set this property to 'Horizontal' to
% linearly increase the offset of the rows, or 'Vertical' to linearly
% increase the offset of the columns.
Direction;
%InterpolationMethod Interpolation method used to shear image
% Specify the interpolation method used to shear the image as one of
% ['Nearest neighbor' | {'Bilinear'} | 'Bicubic']. If this property is
% set to 'Nearest neighbor', the object uses the value of one nearby
% pixel for the new pixel value. If it is set to 'Bilinear', the new
% pixel value is the weighted average of the two nearest pixel values.
% If it is set to 'Bicubic', the new pixel value is the weighted
% average of the four nearest pixel values.
InterpolationMethod;
%MaximumValue Maximum number of pixels by which to shear image
% Specify the maximum number of pixels by which to shear the image as a
% real numeric scalar. This property is applicable when the
% ValuesSource property is 'Input port'. The default value of this
% property is 20.
MaximumValue;
%OutputDataType Output word- and fraction-length designations
% Specify the output fixed-point data type as one of [{'Same as first
% input'} | 'Custom'].
OutputDataType;
%OutputSize Output size as full or same as input image size
% Specify the size of output image as one of [{'Full'} | 'Same as input
% image']. If this property is set to 'Full', the object outputs a
% matrix that contains the sheared image values. If it is set to 'Same
% as input image', the object outputs a matrix that is the same size as
% the input image and contains a portion of the sheared image.
OutputSize;
%OverflowAction Overflow action for fixed-point operations
% Specify the overflow action as one of ['Wrap' | {'Saturate'}].
OverflowAction;
%ProductDataType Product word- and fraction-length designations
% Specify the product fixed-point data type as one of ['Same as first
% input' | {'Custom'}]. This property is applicable when the
% InterpolationMethod property is either 'Bilinear' or 'Bicubic'.
ProductDataType;
%RoundingMethod Rounding method for fixed-point operations
% Specify the rounding method as one of ['Ceiling' | 'Convergent' |
% 'Floor' | {'Nearest'} | 'Round' | 'Simplest' | 'Zero'].
RoundingMethod;
%Values Shear values in pixels
% Specify the shear values as a two-element vector that represents the
% number of pixels by which to shift the first and last rows or columns
% of the input. This property is applicable when the ValuesSource
% property is 'Property'. The default value of this property is [0 3].
Values;
%ValuesDataType Shear values word- and fraction-length designations
% Specify the shear values fixed-point data type as one of [{'Same word
% length as input'} | 'Custom']. This property is applicable when the
% ValuesSource property is 'Property'.
ValuesDataType;
%ValuesSource Source of shear values
% Specify the source of shear values as one of [{'Property'} | 'Input
% port'].
ValuesSource;
end
end