MATLAB Image Processing Toolbox Geometric Operations 1 Contents
MATLAB Image Processing Toolbox Geometric Operations 이석희 1
Contents • Interpolation – is the process by which the software resamples the image data to determine values between defined pixels. • Image Resizing – changes the size of an image using a specified interpolation method. • Image Rotation – rotates an image, using a specified interpolation method and rotation angle. • Image Cropping – extracts a rectangular portion of an image. 2
![Interpolation • Nearest neighbor interpolation[default] – the output pixel is assigned the value of](http://slidetodoc.com/presentation_image/3658a5f1db46bfdba2c5c5c363326e59/image-3.jpg "Interpolation • Nearest neighbor interpolation[default] – the output pixel is assigned the value of")
Interpolation • Nearest neighbor interpolation[default] – the output pixel is assigned the value of the pixel that the point falls within. • Bilinear interpolation – the output pixel value is a weighted average of pixels in the nearest 2 -by-2 neighborhood. • Bicubic interpolation – the output pixel value is a weighted average of pixels in the nearest 4 -by-4 neighborhood. 3
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