LAB ASSIGNMENT 9 (due 04/09/14) ___________________________ The 512x512 floating-point matrix HIDDENMSG contains a faint message (very dark grey on a black background) obscured by additive noise. Message and noise are orthogonal to each other; specifically, - noise has zero projection onto Haar wavelet scales 0,1,...,L-1 - message has zero projection onto Haar wavelet scales L,L+1,...,9 Using this piece of information, perform an iterative Haar wavelet transform on HIDDENMSG. This process will reveal the value of L, since the top left block of the displayed matrix C will at some point appear either solid grey or solid black (depending on how it is being displayed). Using the determined value of L, null out the noise (i.e., the corresponding coefficients) and restore the message component of the image to its original 512x512 size. Display it using IMSHOW with the option [], so that the message is clearly displayed against the black background. ______________________________________________________________________________________ Submit a zip or rar package containing the following files (use exact file names as shown): lastname_labhw_09.m M-file containing your MATLAB code (it's all very similar or identical to the lab script); clearly state your answer for L lastname_labhw_09.pdf The message obtained at the end (white on black background, 512x512). The zip or rar package should be named as lastname_labhw_09.zip / .rar, and should be uploaded from the upload link on the course lab web page , or if not possible, emailed to enee222S2013@gmail.com.