Add HEIF support to Ubuntu Linux 18.04 (thumbnails / gimp) - preview and open HEIC files from iPhone directly in Ubuntu

nospam@example.com (crox) — Mon, 16 Mar 2020 22:10:00 +0000

Since Apple moved from JPEG to HEIF as default format about two years ago, there has been a lot of progress.

There is a very straightforward way to add minimal HEIC/HEIF support to Ubuntu:

sudo add-apt-repository ppa:strukturag/libheif
sudo apt-get install heif-gdk-pixbuf heif-gimp-plugin heif-thumbnailer

That's it! You don't even need to logout or restart, the new functionality is available immediately.

More details here and here.

Borderless pictures from Gimp (HP Photosmart Premium C309a full-bleed printing on Linux/CUPS)

nospam@example.com (crox) — Tue, 15 Sep 2009 21:47:07 +0000

I've recently acquired an HP Photosmart Premium C309a all-in-one device (CC335B). I planned to use the device mainly for its scanner with duplex-capable automatic document feeder (ADF), in order to archive our mail electronically (more on that later). But I was also happy to get a device which can replace man different ones: it is also a fax, and a nice printer for documents, pictures and even (special) CD/DVDs.

I already have a Canon Selphy CP740 dye sublimation photo printer, which I like very much but has two limitations: 1. it's limited to 10x15 format (4x6 in), and 2. it seems that it's impossible to get the printer to work correctly when attached to a PC as a usb printer. It works nicely in stand-alone mode (ie printing from a digital camera with PictBridge or directly from a CF card), but so far I've only managed to waste paper and ink when trying to print directly from the computer. (I've even installed a fresh Windows XP to try the software from Canon, it didn't work any better.) So the good quality of the HP as a photo printer was one more argument in its favour.

Here is how I was able to print borderless photos directly from The Gimp:

1. If you want no border at all, the image should obviously have the same aspect ratio as the paper you'll print on. If necessary, use "Image" -> "Canvas size" or the Crop tool to adjust it.

2. "File" -> "Page setup": select the correct printer and paper size

3. "File" -> "Print":

- in "Page setup", select "Photo Tray" as paper source
- in "Image Settings", check the box "Ignore Page Margins", then adjust Width/Height so that the picture fills the paper (if it doesn't, get back to step 1)
- in "Advanced", select "Photo" as Printout mode, and "1200 dpi, Photo, Full Bleed" under "Resolution, Quality, Ink Type, Media Type" ("Controlled by 'Printout Mode'" seems to do as well)

4. Click "Print"

Recovering blurred images with The Gimp

nospam@example.com (crox) — Sun, 27 Aug 2006 00:56:43 +0000

refocus-it looks like a really nice plug-in for Gimp. I'm currently giving it a try...

blog.crox.net (Entries tagged as gimp)

Add HEIF support to Ubuntu Linux 18.04 (thumbnails / gimp) - preview and open HEIC files from iPhone directly in Ubuntu

Borderless pictures from Gimp (HP Photosmart Premium C309a full-bleed printing on Linux/CUPS)

Recovering blurred images with The Gimp