5th semester files

2024-02-22 14:23:12 -05:00
parent e39a9fec53
commit 5223b711a6
727 changed files with 1836099 additions and 0 deletions
--- a/5th-Semester-Fall-2023/Signals-and-Systems/Labs/Final-Project/faceload.m
+++ b/5th-Semester-Fall-2023/Signals-and-Systems/Labs/Final-Project/faceload.m
@@ -0,0 +1,32 @@
+clear
+
+% ====== PART 1 =======
+%{
+pkg load signal
+
+[img,map]=imread('face.pgm');
+imshow(img, map);
+img2dct = dct2(img);
+imshow(img2dct, map);
+imgrecover = idct2(img2dct);
+imshow(imgrecover, map);
+
+t1 = 0.01.*abs(img2dct);
+t2 = max(max(abs(img2dct)));
+
+c_hat = 255 * (log10(1 + t1) / log10(1 + t2));
+imshow(c_hat, map);
+%title('Log Magnitude of 2D DCT');
+%}
+
+% ====== PART 2 =======
+%{
+pkg load signal
+fv = findfeatures('faces/att_faces/s17/10.pgm', 35);
+plot(fv);
+%}
+
+% ====== PART 3 ======
+subject_range = [1 40];
+dct_coef = 70;
+[trdata_raw, trclass] = face_recog_knn_train(subject_range, dct_coef);