rgb2ycbcr and rgrep

Software

I was trying to tab complete rgrep, but got this command instead. From its man(1) page:

rgb2ycbcr converts RGB color, greyscale, or bi-level TIFF images to YCbCr images by transforming and sampling pixel data. If multiple files are specified on the command line each source file is converted to a separate directory in the destination file.

This would have really helped me a few years ago, because the Gimp didn’t do CMYK. I’m not sure if it does now.

Regarding rgrep, I’ve aliased it to grep -R. I haven’t checked if ack has compatible options to alias to that.

Author bio and support

Me!

Ruben Schade is a technical writer and IaaS engineer in Sydney, Australia who refers to himself in the third person in bios. Wait, not BIOS… my brain should be EFI by now.

The site is powered by Hugo, FreeBSD, and OpenZFS on OrionVM, everyone’s favourite cloud infrastructure provider.

If you found this post helpful or entertaining, you can shout me a coffee or buy some silly merch. Thanks!