Convert low DPI to high DPI

[mail2vguna]

Hi

I am using IM version ImageMagick-6.8.5-3 on windows.

i am trying to convert 200 dpi image to 1920 dpi image. i am getting error while using below code

convert.exe -units PixelsPerInch 200dpi.tif -resample 1920 1920dpi.tif

error
convert.exe: Incompatible type for "RichTIFFIPTC"; tag ignored. `TIFFFetchNormalTag' @ warning/tiff.c/TIFFWarnings/824.
convert.exe: unable to extend cache `200dpi.tif': No space left on device @ error/cache.c/OpenPixelCache/3753.

Do the needful. Many Thanks

[snibgo]

As your other problem:

No space left on device

Get a larger device. This would be the disk drive.

[mail2vguna]

Hi

Thanks for reply.

Here device means what? can you send the script for that how to allocate the cash memory/device memory.
c: drive 4.5gb free already
d:\ drive 45GB available.

Am i correct.? Help me to fix the issue.