Generate a Sequence in MATLAB

1 次查看（过去 30 天）
LOKESH
LOKESH 2012-1-31
I have a 2d NxN image L. I need to convert it to a sequence of pixels L1={k1,k2,....kNxN} row wise

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2012-1-31
L1 = reshape(L.',1,[]).'
  7 个评论
显示 5更早的评论
LOKESH
LOKESH 2012-2-4
Thanks Sir.But with L1 = reshape(L.',1,[]),I am able to convert my 1D image to 2D.But it works only for some images,for rest it gives me errors of
"Access Out of Bounds" OR
"??? Error using ==> reshape
Product of known dimensions, 256, not divisible into total number
of elements, 21845.
Error in ==> rk4_CHEN at 198
C2 = reshape(C1.',M,[]);"
Walter Roberson
Walter Roberson 2012-2-4
You are using M = 256. The only way to reshape in to a 1D row of pixels row-wise is if M = 1.
If you want to convert in to rows, then the number of rows you use, M, must be divide the number of elements in the matrix.
I notice that 21845, the number of elements in the matrix, is 257 x 85. 257 is, of course, one greater than 256. Please check your code for an off-by-one error.
Also, please be careful about whether you use M as the 2nd or 3rd parameter of the reshape(). Do you want M rows and however many columns that works out to, or do you want M columns and however many rows that works out to?
Anyhow, as your requirements have changed since your initial question, please post your new requirements.

请先登录，再进行评论。

更多回答（1 个）

Derek O'Connor
Derek O'Connor 2012-1-31
L1 = L(:)'
  2 个评论
Walter Roberson
Walter Roberson 2012-1-31
That would not take the sequence "row-wise"; it would take them column-wise.
Derek O'Connor
Derek O'Connor 2012-1-31
Sorry, I hadn't noticed the "row-wise".

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by