Image color manipulation via command line

I am trying to change the colors of the boot splash jpgs to blue. When I use gimp to do so by colorization, the image looks blue, until I reboot and it shows red.

Why?

Is there a command line way of guaranteeing the image is converting to blue?

John

I haven’t tried modifying a bootsplash images, but just a question how did you save the modified images. If I to do so I will save it on another file as a user and reopen it to test to make sure it was saved properly before transferring to the proper place with root privilege. I don’t know a command line way of manipulating color. Outside of gimp there is a simple tool that you can use to modify the image if not so complicated. For monochromatic color I think it will work. It is called showfoto. Please give it a try.

All boot splash images are jpg. I dont change the format of the images. Prior to starting the modifications, I copy all pixs to my home folder as a backup, then mess around with the images.

Will give showfoto a shot. I tried imagemagic with no luck.

John

Does anyone have any other options? showfoto isnt a simple install. I am trying to use applications that come with opensuse, if its possible. I have read that convert (which comes with imagemagic) is suppose to perform the task I need. Been unsuccessful so far.

Thanks,
John

Hi John,
showfoto is in the openSUSE kde repositories included with digiKam. Go to yast2 software management and in search type digiKam

shoot, there it is. I had digiKam installed already. Thanks, I will try again.

John