matlab algorithm question
显示 更早的评论
The below link shows an algorithm I want to try and use and I have a few questions about.
Firstly, I am assuming that when i=0, the first frame of a video is titled caltrain000.
for i = 0:30
imgINumber = i;
imgPNumber = i+2;
I also want to know what the below code does? Because when I try and run the code with my own video frames I get the error - "Index exceeds matrix dimensions".
imgI = imgI(:,1:352);
imgP = imgP(:,1:352);
Please help with these two questions
回答（2 个）
D
2011-7-21
In regard to your second question,
a = a(:,1:3)
redefines a to be all rows of the current matrix, but only columns 1 through 3.
So, say
a = [ 1 2 3 4 5 6; 7 8 9 10 11 12; 13 14 15 16 17 18];
then you get
>> a = a(:,1:3)
a =
1 2 3
7 8 9
13 14 15
Fangjun Jiang
2011-7-21
0 个投票
When i=0, imgIFile='./caltrain/gray/caltrain000.ras'
The operation is like crop an image. All rows are selected, but only column 1 to 352 (pixel?) are selected.
2 个评论
James
2011-7-21
Fangjun Jiang
2011-7-21
No idea. I guess it might be related to the size of the image.
类别
在 帮助中心 和 File Exchange 中查找有关 Computer Vision with Simulink 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
