Question 4 In colour vision what is the Purkinje shift (dark adaptation)? O A move in colour sensitivity towards the blue end of the visible spectrum in low light conditions O The ability to see colours well at night O A physical shift of the retina to be closer to the lens in low light conditions O The reason we see red light more intensely at night Question 5 The advantage of the YCrCb colour model over the RGB representation is that: O It allows more colours to be represented O It takes up less space O It allows animation O It splits intensity from colour information Question 6 JPEG makes use of the fact that human vision is very sensitive to small variations in brightness/colour and less sensitive to the strength of high-frequency brightness changes. This means that: O We are good at secing small colour changes between neighbouring pixels O We can not see high-frequency changes in the image O Low frequency changes appear as edges in the image O High frequency changes appear blurred

Question 4 In colour vision what is the Purkinje shift (dark adaptation)? O A move in colour sensitivity towards the blue end of the visible spectrum in low light conditions O The ability to see colours well at night O A physical shift of the retina to be closer to the lens in low light conditions O The reason we see red light more intensely at night Question 5 The advantage of the YCrCb colour model over the RGB representation is that: O It allows more colours to be represented O It takes up less space O It allows animation O It splits intensity from colour information Question 6 JPEG makes use of the fact that human vision is very sensitive to small variations in brightness/colour and less sensitive to the strength of high-frequency brightness changes. This means that: O We are good at secing small colour changes between neighbouring pixels O We can not see high-frequency changes in the image O Low frequency changes appear as edges in the image O High frequency changes appear blurred

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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