Scribusoid

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81
Scripts and Plugins / Re: Scribus PhotoBook Tools
« Last post by Nermander on August 22, 2021, 09:07:28 pm »
Only JPEG. I have to confess I am not 100% sure it is 16x16 pixels...  Yes, it seems to be called MCU (Minimum Coded Unit). But there is also an 8x8 pixel restriction
https://en.wikipedia.org/wiki/JPEG#JPEG_compression

Quote
The top and left edge of a JPEG image must lie on an 8 × 8 pixel block boundary, but the bottom and right edge need not do so. This limits the possible lossless crop operations, and also prevents flips and rotations of an image whose bottom or right edge does not lie on a block boundary for all channels (because the edge would end up on top or left, where – as aforementioned – a block boundary is obligatory).


I don't think there is lossy compression possible with TIFF?

82
Scripts and Plugins / Re: Scribus PhotoBook Tools
« Last post by toyotadesigner on August 22, 2021, 08:54:37 pm »
Does this behavior apply only to JPEG images, or to TIFF images as well?
83
Scripts and Plugins / Re: Scribus PhotoBook Tools
« Last post by Nermander on August 22, 2021, 08:37:05 pm »
The compression option for PDF export does, as far as I know, not crop the images.

I know we had disussions in the past about cropping images, because if the cropping does not follow 16 pixel multiples, the cropping will force a recompression of the file (losing quality), because JPEG compression compresses 16x16 pixel blocks. So I had a suggestion for script that looks at the desired crop but crops slightly larger (to avoid recompression). Then the image retains it's quality, and the visible part can be cropped by the image frame.
84
Linux / Re: Colorprofile for print not shown
« Last post by Nermander on August 22, 2021, 08:34:00 pm »
What about owner and permissions? Are the files you copied now 644 and owned by root? (That is how it looks in the folders I looked into).
85
Scripts and Plugins / Re: Scribus PhotoBook Tools
« Last post by rafferty on August 22, 2021, 06:20:34 pm »
@toyotadesigner: Thanks for your encouraging words.

About your remark: I found out by experimenting that even with maximum image compression, the PDF size is much higher than with using the ‘PhotoBookImageCropResize’-script.
86
Linux / Re: Colorprofile for print not shown
« Last post by Bogo75 on August 22, 2021, 02:42:33 pm »
I didn't intend you to randomly test copying to different folders, but rather research the correct way to install profiles.

I didn't do the installation randomly. First I followed the Scribus docs here: https://wiki.scribus.net/canvas/Getting_and_installing_ICC_profiles
Second I researched the Gentoo docs about installing color profiles.
And the last step was to debug Scribus itself:
strace -fetrace=file scribus |& grep local.*icc

As that said, I am pretty sure I had chosen the correct path in the first. Not to say I am sure. :-)

Stange that they are that biased as they mention Scribus on a different doc about preparing documents for printing. Maybe I really go without softproof, but with a profiled monitor setup only.

Bogo
87
Linux / Re: Colorprofile for print not shown
« Last post by toyotadesigner on August 22, 2021, 01:43:18 pm »
Isn't there a way to convert to a different format. Or better: Is there experience with Saal Digital anywhere?

The company is extremely Adobe oriented and biased. Use the standard PDF/X-4 and contact an experienced printing company that knows how to handle their RIP.
88
Linux / Re: Colorprofile for print not shown
« Last post by Nermander on August 22, 2021, 01:33:54 pm »
I am pretty sure the path is correct as other manual installed profiles are shown within Scribus. But I have tested the folders you mention as well. No chance.

I didn't intend you to randomly test copying to different folders, but rather research the correct way to install profiles.

I personally never manually copy things to /usr/share, because those folders are often maintained by install scripts (at least under Debian derivates).

89
Linux / Re: Colorprofile for print not shown
« Last post by Bogo75 on August 22, 2021, 11:53:18 am »
I am pretty sure the path is correct as other manual installed profiles are shown within Scribus. But I have tested the folders you mention as well. No chance.
I am not sure, if I want to go with "any" ICC profile. Isn't there a way to convert to a different format. Or better: Is there experience with Saal Digital anywhere?

Bogo
90
Linux / Re: Colorprofile for print not shown
« Last post by Nermander on August 22, 2021, 09:51:49 am »
I have unzipped the archive and copied the included .icc to /usr/share/color/icc/

Are you 100% sure this is the right way to install the profiles? (I have not installed any ICC profiles in a couple of years, so I don't remember if is as easy as that. And I don't have Scribus installed on a Linux machine at the moment.)

Did you check the ownership and permissions on the files? Maybe Scribus is not allowed to read them.

I notice that on the Ubuntu machine I have here there are no profiles in /user/share/color/icc/, instead there are two subfolders (colord and ghostscript).
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