How to read an image & convert it into an array and vice versa

Hello ,

how to convert an image to 1x2 array & be able to do the inverse ?

Answer 1

[Jon]

You can use MATLAB's imread and imwrite functions for this.

On the command line you can type doc imread to get documentation for imread, similarly doc imwrite for imwrite.

By the way I think you meant convert an image to an m x n array, an 1x2 array would only have one row and two columns.

[Muhammad Abdulrazek]

the image is "original"

when i apply some algorithm on it it is converted to [167,164]

How to retreive this image from an array like this ?

[Jon]

The only image appears to be in the variable that you call original. The variables that you call Original_Data and DecryptedText are just arrays with two elements (1 row by 2 column). There is no image in Original_Data it is just two numbers.

If you want to display the image in the variable you call original, you can use the functions image or imagesc