how get curvelet transform in MATLAB?

i want to get curvelet transform from image. consider i have 512*512 gray-level image. i read curvelet transform theory and it's relation with ridglet transform,but i have now two questions: my first question is if i have 512*512 gray-level image and i convert it to a vector by size (512*512)*1, what will size of it's curvelet transform and does it a vector? and my second question is how i can get curvelet transform in MATLAB from a vector?

Answer 1

[Stalin Samuel]

this link may help you curvelet transform

[ali esmailzehi]

thanks how can i use from this toolbox? also,may you answer my first question?

Answer 2

[Nasser Eslahi]

• Regarding your first question on the size of curvelet spectra: depending on your selected decomposition (scales, rotation angles, and spatial positions), the size of curvelet subbands may differ. For instance, applying a forward discrete curvelet transform, with 6 levels of decomposition and 16 rotations, to a 512x512 image yields 6x1 cell, where each cell contains sub-cells, and each sub-cells contains a 2D array or a scalar double.
• Regarding your second question: please visit this link where you can find the code for forward and inverse curvelet transforms as well as a demo on image denoising via curvelet thresholding

https://www.mathworks.com/matlabcentral/fileexchange/112215-act?s_tid=srchtitle_ACT_1