* SteveMe [08-31-14 22:34]:

I have just spent the last week editing hundreds of photos (resizing and some brightness adjustments). I edited the photos and exported them as jpeg files to a folder on my computer.

Whilst these play fine on the computer it seems that any photo that has been edited will not play on any of my 3 televisions.

Further investigation on google seems to suggest that edited files contain extra information that tv's are unable to cope with.

What is the extra information?

Does anyone have a solution to rectify this?

Not w/o more information. A stab in the dark, try removing the meta-data from your jpgs.

ps: you might google your tv's to see what manner of jpg they accept. My Vizio's accept jpg's from gimp w/o alteration as does both of my samsung android phones and an ipad and a kindle tablet. ???

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There's a good possibility that your problem is the same as many other people have seen with displaying GIMP 2.8.n edited .jpgs - the JPEG progressive mode:

When exporting a JPEG, click to show "Advanced Options" and un-check "Progressive".

Kevin

Date: Mon, 1 Sep 2014 05:49:54 +0200 From: forums@gimpusers.com
To: gimp-user-list@gnome.org
CC: notifications@gimpusers.com
Subject: [Gimp-user] edited files wont play on tv

* SteveMe [08-31-14 22:34]:
What is the extra information?
Not w/o more information. A stab in the dark, try removing the meta-data
from your jpgs.

ps: you might google your tv's to see what manner of jpg they accept. My Vizio's accept jpg's from gimp w/o alteration as does both of my samsung android phones and an ipad and a kindle tablet. ???

I am not sure exactly what exactly this "additional information" is. I got this from the last comment at
https://community.sony.co.uk/t5/televisions/kdl-32ex403u-playback-not-available-some-photos/m-p/190619 I am not sure how true this is.

I tried removing the metadata but this seems to have no effect.

Steve

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On Tue, 02 Sep 2014 08:26:47 +0200, SteveMe wrote:

Yes, it was the progressive mode that was the problem. I am a bit frustrated that this is enabled by default causing me a sh*tload of extra work.

You can losslessly convert progressive JPEGs to regular ones by using jpegtran:

mkdir normal
for f in *.jpg; do jpegtran "$f" > "normal/$f"; done

This'll quickly convert all JPEG files to non-progressive ones, and save them in normal subdirectory.

As for why progressive is the default, I'm guessing because progressive JPEGs are usually a bit smaller, and because they've been supported by pretty much all software for the last 15+ years, it's a net gain. The better question is why doesn't your TV support a standard that's been around since before the turn of the century.

< Jernej Simončič ><><><><>< http://eternallybored.org/ >