Is there a reliable method to extract the quantized DCT coefficients of a jpeg image? I can see that there is the jpeglib for manipulation of jpegs but I am wondering if someone has already used it and does the job I want to do. To extract the quantized DCT coefficients of each 8x8 block of a jpeg image. (As a matter of fact we are talking - I think - about decompression of a jpeg.) Any other solutions that may apply are fine too. Thanks. PS: I am trying to do a steganography project here...

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hi in my text book i have this problem. how to program this [ICODE] Define a class Quadratic_int that stores the coefficients of a quadratic polynomial in a dynamically allocated array of integers. Supply the "big three" memory management functions. Use this class to demonstrate (a) the difference between initialization Quadratic_int s; Quadratic_int t = s; and assignment operation Quadratic_int s; Quadratic_int t; s = t; (b) the fact that all constructed objects are automatically destroyed (c) the fact that the copy constructor is invoked if an object is passed by value to a function (d) the fact that the …

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So this is my final project for my class. The idea is to use my RationalNum class (which is complete and works fine... I just didn't attach the .cpp since it was only the driver) and use it to add, sub, & multi polynomials (RationalNum being the coefficients i.e. 1/4x^3 + 1/2x^2 + 1/3x, etc.). My over all goal is to input the amount of terms I want and then input the rational coefficients and then the exponets.... the rest will be automatically calculated from there. I am in a sense just starting this out and my mind is completely …

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The End.