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RawTherapy to Gimp

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RawTherapy to Gimp
doiphoto Offline
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Posts: 2
Threads: 1
Joined: May 2025
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Gimp version:
  • 3.0

Operating system(s): Linux
#1
Today, 03:47 AM
Hi, I am trying to get the RawTherapy plugin for importing Canon CR2 raw files into Gimp working but am struggling. I have installed RawTherapy successfully but when I try to open a CR2 file from Gimp I get the error:

There is no RAW loader installed to open 'Raw Canon' files.
GIMP currently supports these RAW loaders:
- darktable (http://www.darktable.org/), at least 1.7
- RawTherapee (http://rawtherapee.com/), at least 5.2
Please install one of them in order to load RAW files.

I am on Ubuntu 24.04.2

I believe I need to install RawTherapy into the "Plugins" folder but cannot locate it's path.

Can any help me with this?
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rich2005 Offline
Administrator
*****
Posts: 7,464
Threads: 158
Joined: Oct 2016
Reputation: 1,038
Gimp version:
  • 2.10
  • 3.0

Operating system(s): Linux
#2
8 hours ago
(Today, 03:47 AM)doiphoto Wrote: Hi, I am trying to get the RawTherapy plugin for importing Canon CR2 raw files into Gimp working but am struggling. I have installed RawTherapy successfully but when I try to open a CR2 file from Gimp I get the error:

There is no RAW loader installed to open 'Raw Canon' files.
GIMP currently supports these RAW loaders:
- darktable (http://www.darktable.org/), at least 1.7
- RawTherapee (http://rawtherapee.com/), at least 5.2
Please install one of them in order to load RAW files.

I am on Ubuntu 24.04.2

I believe I need to install RawTherapy into the "Plugins" folder but cannot locate it's path.

Can any help me with this?

First thing: No need to install any RawTherapee "anything" into the plug-ins folder. The support is already in the Gimp system files.
..then..
What type of Gimp 3.0 and Rawtherpee (RT) have you installed.  Unfortunately 'buntu tends to install a SNAP version or you might have installed a Flatpak or even an appimage. These are "sandboxed" and prevent the plugin working.

Since you are using 'buntu 24.04 you can install a regular version for each from an ubuntu PPA

https://launchpad.net/~ubuntuhandbook1/+...ntu/gimp-3
and
https://launchpad.net/~ubuntuhandbook1/+...awtherapee

How to add these PPA's to the repos is on the page.

An example using a lumix .rw2 file. Open in Gimp which sends it to RT . Close RT (wait-a-bit) and it opens in Gimp.  40 second demo: https://i.imgur.com/2ZFcUAn.mp4

Other things to consider, Cut out the Gimp bit. Open in RT and export as a 32 bit tiff - open that in Gimp.
Canon CR2 files ? I have seen reports about problems with the latest version.
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doiphoto Offline
Newbie
**
Posts: 2
Threads: 1
Joined: May 2025
Reputation: 0
Gimp version:
  • 3.0

Operating system(s): Linux
#3
4 hours ago (This post was last modified: 4 hours ago by doiphoto.)
(8 hours ago)rich2005 Wrote:
(Today, 03:47 AM)doiphoto Wrote: Hi, I am trying to get the RawTherapy plugin for importing Canon CR2 raw files into Gimp working but am struggling. I have installed RawTherapy successfully but when I try to open a CR2 file from Gimp I get the error:

There is no RAW loader installed to open 'Raw Canon' files.
GIMP currently supports these RAW loaders:
- darktable (http://www.darktable.org/), at least 1.7
- RawTherapee (http://rawtherapee.com/), at least 5.2
Please install one of them in order to load RAW files.

I am on Ubuntu 24.04.2

I believe I need to install RawTherapy into the "Plugins" folder but cannot locate it's path.

Can any help me with this?

First thing: No need to install any RawTherapee "anything" into the plug-ins folder. The support is already in the Gimp system files.
..then..
What type of Gimp 3.0 and Rawtherpee (RT) have you installed.  Unfortunately 'buntu tends to install a SNAP version or you might have installed a Flatpak or even an appimage. These are "sandboxed" and prevent the plugin working.

Since you are using 'buntu 24.04 you can install a regular version for each from an ubuntu PPA

https://launchpad.net/~ubuntuhandbook1/+...ntu/gimp-3
and
https://launchpad.net/~ubuntuhandbook1/+...awtherapee

How to add these PPA's to the repos is on the page.

An example using a lumix .rw2 file.  Open in Gimp which sends it to RT . Close RT  (wait-a-bit) and it opens in Gimp.  40 second demo:  https://i.imgur.com/2ZFcUAn.mp4

Other things to consider, Cut out the Gimp bit. Open in RT and export as a 32 bit tiff - open that in Gimp.
Canon CR2 files ? I have seen reports about problems with the latest version.

That is starting to make some sense because I have had it wrking previously. I will uninstall Gimp/RT and use the launchpad versions and post how it goes. Thanks!
(4 hours ago)doiphoto Wrote:
(8 hours ago)rich2005 Wrote:
(Today, 03:47 AM)doiphoto Wrote: Hi, I am trying to get the RawTherapy plugin for importing Canon CR2 raw files into Gimp working but am struggling. I have installed RawTherapy successfully but when I try to open a CR2 file from Gimp I get the error:

There is no RAW loader installed to open 'Raw Canon' files.
GIMP currently supports these RAW loaders:
- darktable (http://www.darktable.org/), at least 1.7
- RawTherapee (http://rawtherapee.com/), at least 5.2
Please install one of them in order to load RAW files.

I am on Ubuntu 24.04.2

I believe I need to install RawTherapy into the "Plugins" folder but cannot locate it's path.

Can any help me with this?

First thing: No need to install any RawTherapee "anything" into the plug-ins folder. The support is already in the Gimp system files.
..then..
What type of Gimp 3.0 and Rawtherpee (RT) have you installed.  Unfortunately 'buntu tends to install a SNAP version or you might have installed a Flatpak or even an appimage. These are "sandboxed" and prevent the plugin working.

Since you are using 'buntu 24.04 you can install a regular version for each from an ubuntu PPA

https://launchpad.net/~ubuntuhandbook1/+...ntu/gimp-3
and
https://launchpad.net/~ubuntuhandbook1/+...awtherapee

How to add these PPA's to the repos is on the page.

An example using a lumix .rw2 file.  Open in Gimp which sends it to RT . Close RT  (wait-a-bit) and it opens in Gimp.  40 second demo:  https://i.imgur.com/2ZFcUAn.mp4

Other things to consider, Cut out the Gimp bit. Open in RT and export as a 32 bit tiff - open that in Gimp.
Canon CR2 files ? I have seen reports about problems with the latest version.

That is starting to make some sense because I have had it wrking previously. I will uninstall Gimp/RT and use the launchpad versions and post how it goes. Thanks!

Hi sorry to sound like a dummy. I have added those two repositories now but where do I actually download the programs? I am not experienced with launchpad.
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