How to find total number of pixels in a colour image? How to find the resolution of an 2D image?

2 views (last 30 days)

Show older comments

priya h on 24 Feb 2021

0
Link

Direct link to this question

https://se.mathworks.com/matlabcentral/answers/755049-how-to-find-total-number-of-pixels-in-a-colour-image-how-to-find-the-resolution-of-an-2d-image

Commented: Image Analyst on 27 Feb 2021

Accepted Answer: Image Analyst

How to find total number of pixels in a colour image? How to find the resolution of an 2D image?

2 Comments
Show NoneHide None

priya h on 27 Feb 2021

How to find the spatial resolution of a colour image?

Image Analyst on 27 Feb 2021

spatial_calibration_demo.m

I told you in the Answer below. Anyway, I'm now attaching my spatial calibration demo.

Sign in to comment.

Sign in to answer this question.

Accepted Answer

Image Analyst on 24 Feb 2021

1
Link

Direct link to this answer

https://se.mathworks.com/matlabcentral/answers/755049-how-to-find-total-number-of-pixels-in-a-colour-image-how-to-find-the-resolution-of-an-2d-image#answer_632219

Open in MATLAB Online

[rows, columns, numColorChannels] = size(rgbImage);
numberOfPixels = rows * columns;

Digital resolution is number of rows and columns.

Spatial resolution in the real world units is the field of view in real world units divided by the number of rows or columns.

0 Comments
Show -2 older commentsHide -2 older comments

Sign in to comment.

More Answers (0)

Sign in to answer this question.

Categories

Image Processing and Computer Vision Image Processing Toolbox

Find more on Image Processing Toolbox in Help Center and File Exchange

Tags

Products

Image Processing Toolbox

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!