How to Downsample image in both Horizontal and Vertical Direction
56 次查看(过去 30 天)
显示 更早的评论
Any one help me how to downsample image in horizontal direction and vertical direction.
i used downsample(image,4), it will down sample image in both the direction, but i need to downsample separately for horizontal and vertical.
Does any know suggest me please.
Thank You
0 个评论
采纳的回答
Sean de Wolski
2012-12-7
编辑:Sean de Wolski
2012-12-7
For grayscale:
Xdown = X(1:2:end,1:2:end);
If it's RGB, keep the third dimension:
Xdown = X(1:2:end,1:2:end,:);
1 个评论
Image Analyst
2012-12-7
That's how I'd do it for simple subsampling by an integer (2, 3, 4, etc.). There is also the imresize() function that you can use. It will handle interpolation if the subsampling is not by integer amounts.
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Multirate Signal Processing 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!