jagbolanos/image_processing_assignments

These are the assignments that I'm working on for the Coursera Image and Video Processing course

Week 1

image=imread('explosion.jpg');
imagengray = rgb2gray(image);

Problem 1

new_image=reduce_intensity(imagengray, 128);
imshow(new_image);

Problem 2

new_image=average_image(imagengray, 10);
imshow(new_image);

Problem 3

Custom function

new_image=rotate_image(imagengray, 3.1416 / 2);
imshow(new_image);

Using just Matlab

new_image=imrotate(imagengray,45);
imshow(new_image);

Problem 4

new_image=reduce_image_size(imagengray, 4);
imshow(new_image);

Week 2

Problem 1

DCT+Quantization Table 8x8 - RGB and Grayscale

new_image = jpegcompress(image);
imshow(new_image);

new_image = jpegcompress(imagengray);
imshow(new_image);

FFT+Quantization Table 8x8 - Grayscale

new_image = jpegcompressfft(imagengray);
imshow(new_image);