Top "Dct" questions

Discrete Cosine Transform (DCT).

Discrete Cosine Transform DCT implementation C

Im trying to implement a forward and inverse Discrete Cosine Transform (DCT) in C. The code is to transorm a …

c dct
How do I apply a DCT to an image in Python?

I want to apply a Discrete Cosine Transform (as well as the inverse) to an image in Python and I'm …

python opencv image-processing scipy dct
Extracting DCT coefficients from encoded images and video

Is there a way to easily extract the DCT coefficients (and quantization parameters) from encoded images and video? Any decoder …

image-processing opencv video-processing dct
why DCT transform is preferred over other transforms in video/image compression

I went through how DCT (discrete cosine transform) is used in image and video compression standards. But why DCT only …

fft video-processing image-compression dct
Looking for 8x8 (or nxn) Discrete Cosine Transform (DCT)/IDCT Pseudo-Code

I've been searching Google for a while now to find pseudo-code of a decently efficient 8x8 (or nxn) DCT algorithm, …

c++ algorithm dct
Discrete cosine transform (DCT) of an image

I work on a function in Matlab that calculates the DCT (discrete cosine transform) of an image. I don't know …

image matlab dct
Why JPEG compression processes image by 8x8 blocks?

Why JPEG compression processes image by 8x8 blocks instead of applying Discrete Cosine Transform to the whole image?

compression jpeg dct
Problems with DCT and IDCT algorithm in java

Here I have my DCT algorithm class with "applyDCT" and "applyIDCT" methods. Technically after doing a forward DCT (discrete cosine …

java algorithm dct