This is an image local enlargement tool. ---- Demo_magnify_blow_Left.m: It presents the local enlargment image in blow left. ---- image_amplification_below_Right.m: It presents the local enlargment image in blow right. ---- Demo_magnify_Top_Left.m: It presents the local enlargment image in Top left. ---- image_amplification_Top_Right.m It presents the local enlargment image in Top right. ---- draw_rect.m This function can be used to change the color. If you have any question, please connect Dr. Zha Zhiyuan. Email: zhazhiyuan.mmd@gmail.com.