Question:
The human eye perception is limited to approximately
The human eye perception is limited to approximately
Show Hint
The ability to distinguish different gray levels is crucial in image processing and vision-based applications especially in low-contrast environments
Updated On: Jan 17, 2026
- 16 gray levels
- 32 gray levels
- 64 gray levels
- 128 gray levels
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
The human eye can typically distinguish around 64 different shades of gray in varying lighting conditions which is why the perception of gray levels is limited to around 64 This is a physiological limitation of the human visual system
Was this answer helpful?
0
0
Top CUET PG Mechanical Engineering Questions
- The vacuum in a closed container is 50 mm of Hg The absolute pressure in the container is
- Consider the following statements: The assumptions made in deriving Euler’s equation are:
- Fluid is non-viscous fluid.
- The flow is along a streak line.
- Match List I (Non-dimensional number) with List II (It is the ratio of):Choose the correct answer from the options given below:
LIST I LIST II A. Reynold’s Number III. Inertia force to viscous force B. Mach Number I. Inertia force to elastic force C. Froude’s Number II. Inertia force to gravity force D. Weber’s Number IV. Inertia force to surface tension force - Given below are two statements:
Statement (A): The flow in a pipe is turbulent when the Reynolds’ Number is more than 4000.
Statement (R): The flow in a pipe is turbulent at entry and slowly changes to laminar along the length of the pipe.
In light of the above statements, choose the correct answer from the options given below: - Consider the following statements about the flow in a convergent-divergent nozzle operating under design conditions:
- In the divergent section, pressure is higher than the pressure in the convergent section.
- The pressure at the throat is equal to critical pressure.
- The pressure in the convergent section reduces.
- The flow is subsonic in the convergent section and supersonic in the divergent section.
View More Questions
Top CUET PG Sensors and Drives Questions
- Given below are two statements, one is labelled as Assertion (A) and the other one labelled as Reason (R).
Assertion (A): Smart materials can be used as microsensors and microactuators, both.
Reason (R): Smart materials belong to intelligent mechanisms.
Choose the correct answer from the options given below: - Which of the following does not belong to the static characteristics of transducers
- Which of the following sensors can be used to monitor linear and angular velocities and detect motion?
(A) Incremental encoder
(B) Tachogenerator
(C) Piezoelectric sensors
(D) Pyroelectric sensors
Choose the correct answer from the options given below: - In an electrical actuation system, solid-state switches include:
(A) Bipolar transistors
(B) Thyristors and triacs
(C) Relays
(D) Diodes
Choose the correct answer from the options given below: - The sequence for flow of signal in working principle of microsensors includes:
(A) Input signal
(B) Transducer element
(C) Sensor element
(D) Output signal
Choose the correct answer from the options given below:
View More Questions
Top CUET PG Questions
- Given below are two statements:
Statement I: For Plato the meaning of the word 'Justice' is basically a conception in the mind only.
Statement II: For Plato the meaning of the word 'Justice' is fixed, mind-independently
In the light of the above statements, choose the correct answer from the options given below: - What is the electron count of OS6CO182-?
- XeF4 hydrolysis gives A + B, HF, and Oxygen. Find A and B
- What is more basic in pyrol and pyridine?
- Hydrolysis of Al2C3, Be2?
View More Questions