How to save openCV cv::Mat to an image without alterations

Question

I've seen other questions attempting to answer this ( in a method similar to mkuse's method using FileStorage ). But it seems as though the ONLY way to do this is by saving it to .xml or .yml

I really need a way to save a file using imwrite() that doesn't cut off all my 16bit decimal values.

I really wanted to do it in a .tif but it seems that I can't do that.

There HAS to be another way!

you could convert to 16 bit integer range or code as 16 bit integer and save a png? — Micka, Jul 20 '16 at 20:56

score 1 · Accepted Answer · edited May 23 '17 at 12:14

1

You could try saving it using something other than imwrite. If you write your image data in a binary file using fstream as shown in this StackOverflow question, you wouldn't lose any precision. It just makes the saving and reading process a bit more complicated but you could easily write wrappers for that.

Such as is being done here.

edited May 23 '17 at 12:14

Community

1
1

answered Jul 20 '16 at 05:49

Sunreef

4,452
21
33

Thanks @Sunreef !! I actually was just deciding to go ahead and do that yesterday as I was leaving work. I just wanted to make double sure that I needed to write some wrappers and that I didn't miss something obvious. – Jeremy Gamet Jul 20 '16 at 18:39

How to save openCV cv::Mat to an image without alterations

1 Answers1