How to find the image of an image file type

This has been posted on the LabView forum by mistake yesterday, please excuse the double post.

I am trying to open a JPEG image.  If I don't know the type of image (8U, 16I, GrayscaleSingle,... etc)... is it possible to find this information?

If you open the file using IMAQ ReadFile... you will need to provide an Image create to allocate space... the entry specifies a type to read... but if the type of the stored data is not the type specified in the read file that is read the file as type specified, or the file does not all input values... (and no error is produced).

Examples:

Store a JPEG image single Percision floating point.

Use a Creat file to specify that the file is read with the following types... with the following results

Specified type Type reading resulting image

U8 U8 8 bit image appears

16I                               16I

Hummer1,

There are two methods to achieve this:

(1) IMAQ GetFileInfo, who has quite a few outings involving details of the image.

(2) read the JPEG file, which you can ungroup the image data to obtain the depth of the image, or other attributes of output.

I would recommend the IMAQ function, because it is more detailed.

Hope this helps

Tags: NI Software

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