Mercurial > ift6266
changeset 444:18841eeb433f
small syntax fix
| author | Xavier Glorot <glorotxa@iro.umontreal.ca> |
|---|---|
| date | Mon, 03 May 2010 18:43:24 -0400 |
| parents | 89a49dae6cf3 |
| children | 868f82777839 |
| files | writeup/techreport.tex |
| diffstat | 1 files changed, 2 insertions(+), 2 deletions(-) [+] |
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--- a/writeup/techreport.tex Mon May 03 18:38:58 2010 -0400 +++ b/writeup/techreport.tex Mon May 03 18:43:24 2010 -0400 @@ -169,7 +169,7 @@ This filter permuts neighbouring pixels. It selects first $\frac{complexity}{3}$ pixels randomly in the image. Each of them are then sequentially exchanged to one other pixel in its $V4$ neighbourhood. Number of exchanges to the left, right, top, bottom are equal or does not differ from more than 1 -if the number of selected pixel is not a multiple of 4. +if the number of selected pixels is not a multiple of 4. It has has a probability of not being applied, at all, of 80\%. @@ -206,7 +206,7 @@ For each image we sample uniformly from $3$ to $3 + 10 \times complexity$ pixels that will be averaging centers between the original image and the filtered one. We initialize to zero a mask matrix of the image size. For each selected pixel we add to the mask the averaging window centered to it. -The final image is computed from the following element-wise operation: $\frac{image + filtered_image \times mask}{mask+1}$. +The final image is computed from the following element-wise operation: $\frac{image + filtered image \times mask}{mask+1}$. This filter has a probability of not being applied, at all, of 75\%.