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I got the request to transform a PNG in RD_new to WGS84. Is this possible?

I was thinking of changing the accompanied world file its coordinates. I do not think it is possible to load in a png in a transformation function right?

I normally would use spTransform from RStudio for it but I am expecting it wont work.

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  • There is an xml doc type accompanied with the file
    – Zuenie
    Commented Jan 28, 2015 at 11:45

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If you have GDAL, you can reproject the png with:

galwarp -s_srs epsg:28992 -t_srs epsg:4326 source.png dest.tif

If you want a png file as result, you have to use gdal_translate in a second step:

gdal_translate -of PNG test.tif dest.tif dest.png
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  • I am sure this will work but I do not understand above lines of text. Probably that is for the command prompt right? I am not so familiar with working with the command prompt, prefer to stay within my working environment like RStudio.
    – Zuenie
    Commented Jan 28, 2015 at 12:30
  • Yes, it is for command line. But you can do the same with QGIS which is for free too.
    – AndreJ
    Commented Jan 28, 2015 at 12:57

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