Description: Zooming: oversampling and Shrinking : undersampling
Zooming requires two steps:
Creation of new pixel locations,
Assignment of gray levels to those new locations.
To shrink an image by one-half, delete every other row and column.
Platform: |
Size: 2048 |
Author:riyadh |
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Description: * Zooming and Shrinking Images
-(a) Write a computer program capable of zooming and shrinking an image by nearest neighbour and bilinear interpolation. The input to your program is the desired size of the resulting image in the horizontal and vertical direction. Then your program should create and display the resulting image in the desired size. Note: You cannot use the existing functions in the CImg library for zooming and shrinking.
(b) Download the image (Fig2.19(a)) of size 512 x 512 and use your program to shrink this image to sizes 256 x 256 pixels, 100 x 100 pixels, and 30 x 30 pixels, using both nearest neighbour and bilinear interpolation.
(c) Use your program to zoom each of the resulting images in (b) back to 500 x 500 with their respective interpolation methods. Explain the reasons for their differences from the original attached image. Platform: |
Size: 4386816 |
Author:k |
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Description: matlab实现用双线性插值法放大和缩小图像-Zooming and Shrinking Images by Bilinear Interpolation
(a) Write a computer program capable of zooming and shrinking an image by bilinear interpolation. The input to your program is the desired size of the resulting image in the horizontal and vertical direction. You may ignore aliasing effects.
(b) Download Fig. 2.19(a) and use your program to shrink this image 1024 x 1024 to 256 x 256 pixels.
(c) Use your program to zoom the image in (b) back to 1024 x 1024. Explain the reasons for their differences.
Platform: |
Size: 521216 |
Author:彭筱媛 |
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Description: this consists of convolution without filters, watermarking of image, zooming and shrinking of images without the use of inbuilt functions. Platform: |
Size: 2048 |
Author:Chippy
|
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Description: 双线性插值放大缩小图像
编写一个通过双线性插值来缩放和缩小图像的计算机程序。(Zooming and Shrinking Images by Bilinear Interpolation
(a) Write a computer program capable of zooming and shrinking an image by bilinear interpolation. The input to your program is the desired size of the resulting image in the horizontal and vertical direction. You may ignore aliasing effects.
(b) Download Fig. 2.19 and use your program to shrink this image from 1024 x 1024 to 256 x 256 pixels.
(c) Use your program to zoom the image in (b) back to 1024 x 1024. Explain the reasons for their differences.) Platform: |
Size: 566272 |
Author:seayon
|
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