How to read image from pixel values

Hi,

I need to read image from pixel values in .txt file

can anyone suggest something about this

Thanks in advance

[Image Analyst]

Here's a suggestion:

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

Read that, then explain better what you mean. Otherwise all I can suggest to to look at things like dlmread(), fread(), and similar kinds of text reading functions.

[Jim]

I mean

How to convert pixel values(in a file) into image

Thanx in advance

[Jan]

Please, Vivek, post any details. There is absolutely no chance, that we can guess how the "pixel values" are stored in the file.

Answer 1

[Andreas Goser]

An image in MATLAB is an array (matrix) of pixel values. I'd say you have 2 steps. 1. Importing the TXT file. 2. Display the image. For 1. there are tons of options. Read the doc, try IMPORTDATA and other commands and if you need help, ask here. For 2. the commands are IMAGE or IMVIEW.

[Jim]

Hi,

I am using this command for finding mean of the 10 images

mean(cat(3,IMG1,IMG2,IMG3,IMG4,IMG5,IMG6,IMG7,IMG8,IMG9,IMG10),3)

Here 3 is the dimension

Why to use 3 dimension here?

When I am using 2 dimensional I am not getting the answer.why?

can u suggest something about this

Thanks in advance

[Walter Roberson]

Just answered this in your other topic. Duplicating questions makes for more work :(

[Jim]

Hi,

thanks for ur reply

I need to remove pixels with zero pixel value in an image(dead pixels)

Can you suggest me something about this

Thanks in advance