Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
"Invalid parameter - -thumbnail" is a message from the Windows utility "convert.exe", not the ImageMagick "convert.exe". You are calling the wrong program.
You can either:
- change your path enviroment variable so the IM path is before the Windows path
- rename IM convert.exe to, for example, imconvert.exe
- call convert.exe with a full path.
snibgo wrote:"Invalid parameter - -thumbnail" is a message from the Windows utility "convert.exe", not the ImageMagick "convert.exe". You are calling the wrong program.
You can either:
- change your path enviroment variable so the IM path is before the Windows path
- rename IM convert.exe to, for example, imconvert.exe
- call convert.exe with a full path.