How to convert a .bmp image to .png?

[johannes]

Dear all,

I want to convert a .bmp file into a .png file.

My idea is to use WIMAGE and RPNG, but the simple way does not work.

Which calls or settings have to be added to the following calls ? Or any better solution?

CALL DISLIN()

 

CALL WIMAGE('test.bmp')

 

CALL RPNG('test.png')

CALL DISFIN()

Best regards

Johannes

[Helmut Michels]

Dear Johannes,

using INCFIL instead of WIMAGE should work. WIMAGE is restricted to image files

of type .img. The Dislin utility 'disbmp' can also convert BMP to PNG files. For example,

the command

       disbmp    xxx.bmp     png        

will create the PNG file xxx.png.

With best regards,

Helmut

[johannes]

Dear Helmut,

1. Simply replacing WIMAGE by INCFIL does not work:

    <<<< Warning 40: File format and output device are incompatible in incfil!
    <<<< Warning 40: File format and output device are incompatible in rpng!

    <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
    <<                END OF DISLIN / VERSION 11.2.1

Additional statements to be added?

2. DISBMP is not listed in the online ALPHABEITCAL List . Do I have a version problem?

Best regards

Johannes

[Helmut Michels]

Dear Johannes,

the output format must be a raster format. For example  metafl ('cons') or metafl ('virt').

disbmp is a utility included in the win subdirectory of the Dislin directory. At the moment

I'm not sure if it was already available in the version 11.2.1.

With best regards,

Helmut