How to convert binartized image back to original image

i have binarized the image using the following code.

orgImage = imread('coins.png');

binImage = imbinarize(orgImage);

How to get back my orgImage from binimage?

Answer 1

[Image Analyst]

What do you mean by "get back"? You still have it. Just because you passed it in to imbinarize(), that did not change or delete the original image. It is still there in your program (the workspace of your script or function).

If you somehow manually deleted it, then you cannot recover the original image because lots of gray scale images could give rise to the same binary image.

[Saravanakumar Chandrasekaran]

Thank you Image analyst..

Let me elaborate my query.

On executing these lines

orgImage = imread('coins.png');

binImage = imbinarize(orgImage);

a variable binimage is created as 246 x 300 logical .

I would like to reconstruct the image from this binimage and save it as a new png file.

Is it possible to do. Is there any builtin function to convert the binary data into a image

[Image Analyst]

It is not possible. For example, you could multiply the original image by 2 and imbinarize would give you the same binary image. Therefore to "reconstruct" the original gray scale image, how would it know to give you the original image, or the one that had values twice as big? It could not know which to give you.

[Saravanakumar Chandrasekaran]

Thank you image analyst.. i got the concept