LamTangYu
Back to Psych 221 Projects 2013
Introduction
The purpose of the camera forensics project is to automatically detect whether an image, that was produced by CFA interpolation, was tampered with. CFA interpolation is used by digital camera to generate digital images. The interpolation will result in specific statistical patterns in the pixels of an image, which and then be utilized to determined whether or not an image has been altered.
Background
What is CFA Interpolation?
Different Types of CFA Interpolation Techniques
Bilinear/Bicubic
Smooth Hue Transition
Median Filter
Gradient Based
Adaptive Color Plane
Threshold-Based Variable Number of Gradients
Methods
Results - What you found
Retinotopic models in native space
Some text. Some analysis. Some figures.
Retinotopic models in individual subjects transformed into MNI space
Some text. Some analysis. Some figures.
Retinotopic models in group-averaged data on the MNI template brain
Some text. Some analysis. Some figures. Maybe some equations.
Equations
If you want to use equations, you can use the same formats that are use on wikipedia.
See wikimedia help on formulas for help.
This example of equation use is copied and pasted from wikipedia's article on the DFT.
The sequence of N complex numbers x0, ..., xN−1 is transformed into the sequence of N complex numbers X0, ..., XN−1 by the DFT according to the formula:
where i is the imaginary unit and is a primitive N'th root of unity. (This expression can also be written in terms of a DFT matrix; when scaled appropriately it becomes a unitary matrix and the Xk can thus be viewed as coefficients of x in an orthonormal basis.)
The transform is sometimes denoted by the symbol , as in or or .
The inverse discrete Fourier transform (IDFT) is given by
Retinotopic models in group-averaged data projected back into native space
Some text. Some analysis. Some figures.
Conclusions
Here is where you say what your results mean.
References - Resources and related work
References
Software
Appendix I - Code and Data
Code
Data
Appendix II - Work partition (if a group project)
Brian and Bob gave the lectures. Jon mucked around on the wiki.