# Tag Archives: Graphics

## COMPLETE LECTURE NOTES ON DIGITAL IMAGE PROCESSING-BIOMEDICAL NOTES

Image Formation
Inside the Camera – Projection
Inside the Camera – Sensitivity
Sensitivity and Color
Summary
Digital Image Formation
Sampling
Quantization
Summary
(R,G,B) Parameterization of Full Color Images
Grayscale Images
Images as Matrices
Homework I

Summary of Lecture 1
Simple Processing – Transpose
Simple Processing – Flip Vertical
Simple Processing – Cropping
Simple Image Statistics –  Sample Mean and Sample Variance
Simple Image Statistics – Histogram
Point Processing
Summary
Homework Rules
Homework II

Summary of Lecture 2
Brief Note on Image Segmentation
Histogram Based Image Segmentation
Histogram Equalization
Summary
Homework III

## INTERVIEW AND SHORT ANSWER QUESTION ON IMAGE PROCESSING-BIOMEDICAL JOBS & NOTES QUESTION 21-40

21. Define subjective brightness and brightness adaptation?
Subjective brightness means intensity as preserved by the human visual system.
Brightness adaptation means the human visual system can operate only from
scotopic to glare limit. It cannot operate over the range simultaneously. It accomplishes
this large variation by changes in its overall intensity.

22. Define weber ratio
The ratio of increment of illumination to background of illumination is called as
weber ratio.(ie) ?i/i
If the ratio (?i/i) is small, then small percentage of change in intensity is needed
If the ratio (?i/i) is large , then large percentage of change in intensity is needed

## INTERVIEW AND SHORT ANSWER QUESTION ON IMAGE PROCESSING-BIOMEDICAL JOBS & NOTES-QUESTION NO 1-20

Define Image?
An image may be defined as two dimensional light intensity function f(x, y)
where x and y denote spatial co-ordinate and the amplitude or value of f at any point
(x, y) is called intensity or grayscale or brightness of the image at that point.

## convert docx file directly to .doc

THIS TOOL IS USED TO CONVERT ALL THE DOCX FILE DIRECTLY TO .DOC FORMAT SO THAT IT CAN BE OPENED IN LOWER VERSIONS OF OFFICE