Timelapse/Processing - Revision history

Unknown user: /* Renaming Files: Real Deal */

2022-05-20T16:06:44Z

Renaming Files: Real Deal

← Older revision		Revision as of 16:06, 20 May 2022
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	===Renaming Files: Real Deal===		===Renaming Files: Real Deal===

	~~When it was time to run the~~ real ~~script, I copied the above script into the directory containing the downsampled pile of 8,000 photos, and made one modification: the line that actually EXECUTES, not just PRINTS, the mv command~~.		The real filenames were more complicated.

	~~This strips out the~~ six-digit time suffix~~, which changes~~ from photo to photo. ~~This gives all~~ of the ~~photos the same prefix, which is also essential for ffmpeg.~~		Each file had a six-digit timestamp prefix, then a dash, and then a six-digit time suffix that changed from photo to photo, by random amounts. Like this:

			<pre>
			20160730-165955_8313.jpg
			20160730-170000_8314.jpg
			20160730-170005_8315.jpg
			</pre>

			which we wanted to turn into

			<pre>
			20160730_8313.jpg
			20160730_8314.jpg
			20160730_8315.jpg
			</pre>


			To do that, we used this modified version of the above script:

	<pre>		<pre>
Line 195:		Line 212:
	done		done
	</pre>		</pre>

	~~Ran it. It took almost a minute, but it renamed all the files like a charm.~~

	Let's break down that sed expression:		Let's break down that sed expression:

Unknown user: /* Renaming Files: Test Run */

2022-05-20T16:03:48Z

Renaming Files: Test Run

← Older revision		Revision as of 16:03, 20 May 2022
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	<pre>		<pre>
	$ ./doit.sh		$ ./doit.sh
	mv f1.jpg img_0001.jpg		mv f101G1.jpg img_0001.jpg
	mv f2.jpg img_0002.jpg		mv f101G2.jpg img_0002.jpg
	mv f3.jpg img_0003.jpg		mv f101G3.jpg img_0003.jpg
	mv f4.jpg img_0004.jpg		mv f102G1.jpg img_0004.jpg
	mv f5.jpg img_0005.jpg		mv f102G2.jpg img_0005.jpg
	mv f6.jpg img_0006.jpg		mv f102G3.jpg img_0006.jpg
	mv f7.jpg img_0007.jpg		mv f103G1.jpg img_0007.jpg
	mv f8.jpg img_0008.jpg		mv f103G2.jpg img_0008.jpg
	</pre>		</pre>

Unknown user: /* Renaming Files: Test Run */

2022-05-20T16:01:36Z

Renaming Files: Test Run

← Older revision		Revision as of 16:01, 20 May 2022
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	i=1		i=1
	for file in `/bin/ls -1 *.jpg`; do		for file in `/bin/ls -1 *.jpg`; do
	~~filestrip~~=$(echo "$file" \| sed 's/\.jpg//')		originalprefix=$(echo "$file" \| sed 's/\.jpg//')
	newfile=$(printf "${~~filestrip~~}_%04d.jpg" "$i")		newprefix="img"
			newfile=$(printf "${newprefix}_%04d.jpg" "$i")
	echo "mv ${file} ${newfile}"		echo "mv ${file} ${newfile}"
	i=$((i+1))		i=$((i+1))
Line 162:		Line 163:
	</pre>		</pre>

	The output of this file, run on a dummy directory with 8 dummy files ~~(note that it preserves the original filename, without the extension)~~		The output of this file, run on a dummy directory with 8 dummy files:

	<pre>		<pre>
	$ ./doit.sh		$ ./doit.sh
	mv f1.jpg ~~f1_0001~~.jpg		mv f1.jpg img_0001.jpg
	mv f2.jpg ~~f2_0002~~.jpg		mv f2.jpg img_0002.jpg
	mv f3.jpg ~~f3_0003~~.jpg		mv f3.jpg img_0003.jpg
	mv f4.jpg ~~f4_0004~~.jpg		mv f4.jpg img_0004.jpg
	mv f5.jpg ~~f5_0005~~.jpg		mv f5.jpg img_0005.jpg
	mv f6.jpg ~~f6_0006~~.jpg		mv f6.jpg img_0006.jpg
	mv f7.jpg ~~f7_0007~~.jpg		mv f7.jpg img_0007.jpg
	mv f8.jpg ~~f8_0008~~.jpg		mv f8.jpg img_0008.jpg
	</pre>		</pre>

Admin: /* Problems */

2016-07-31T06:36:45Z

Problems

← Older revision		Revision as of 06:36, 31 July 2016
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	==Problems==		==Problems==

	The problem is, sometimes you don't have control over the camera's brightness setting, or you set it to auto. Or the white balance is also set to automatic, and adjusting the colors to be reasonable on one makes the colors look awful on another. This can make your videos look awful. Case in point: in this video, I picked one frame and brightened it up		The problem is, sometimes you don't have control over the camera's brightness setting, or you set it to auto. Or the white balance is also set to automatic, and adjusting the colors to be reasonable on one makes the colors look awful on another. This can make your videos look awful. Case in point: in this video, I picked one frame and brightened it up, and adjusted the colors to eliminate an awful green tint.

			Then I applied those changes to the rest of the photos, and made them into a video. Here's the awful result:

			<html>
			<iframe src="https://player.vimeo.com/video/176907136" width="640" height="427" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
			<p><a href="https://vimeo.com/176907136">Raspberry Pi Timelapse: Adjusted Colors (Yuck)</a> from <a href="https://vimeo.com/charlesreid1">charlesreid1</a> on <a href="https://vimeo.com">Vimeo</a>.</p>
			</html>

	=Creating Video from Image Files=		=Creating Video from Image Files=

Admin: /* Applying Effects */

2016-07-31T06:32:21Z

Applying Effects

← Older revision		Revision as of 06:32, 31 July 2016
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	</pre>		</pre>

	=Applying Effects=		=Applying Effects with Lightroom=

			==How It Works: The Theory==

	For editing photos - single or multiple - I recommend using a tool like Lightroom, which allows you to "save" your edit steps and apply them en masse to a large number of photos at once.		For editing photos - single or multiple - I recommend using a tool like Lightroom, which allows you to "save" your edit steps and apply them en masse to a large number of photos at once.

	~~==En masse==~~		Start by modifying a single photo. Do this in "Develop" mode. You can adjust brightness, colors, whatever you want. Now select all the photos in that folder by pressing Control+A or Command+A. (Or, use Control+Click or Command+Click and pick the photos you want out of the photo tray on the bottom). Then click the big "Sync" button. This will synchronize all of your adjustments to ALL of the other photos.

			Once you're ready, and all the photos have chnages synced, you'll need to EXPORT them. Pick a location, a naming schema, a format, etc. Then export them to a folder. The content of this folder contain your modified time lapse photos and will be used to make a (modified, with effects) time lapse video.

	In Lightroom you can apply the set of effects you've applied for one photo, to an entire group of photos. Select all of the photos you want to apply the effect to. Then, keeping those photos selected, make the "active" photo the photo whose effects you want to apply.		==Problems==

	~~Then click "Apply effects.~~.~~." button. This will apply~~ the ~~same~~ set ~~of effects~~ to ~~all of~~ the ~~photos~~.		The problem is, sometimes you don't have control over the camera's brightness setting, or you set it to auto. Or the white balance is also set to automatic, and adjusting the colors to be reasonable on one makes the colors look awful on another. This can make your videos look awful. Case in point: in this video, I picked one frame and brightened it up

	=Creating Video from Image Files=		=Creating Video from Image Files=

Admin: /* Single photo */

2016-07-31T06:29:50Z

Single photo

← Older revision		Revision as of 06:29, 31 July 2016
Line 120:		Line 120:

	For editing photos - single or multiple - I recommend using a tool like Lightroom, which allows you to "save" your edit steps and apply them en masse to a large number of photos at once.		For editing photos - single or multiple - I recommend using a tool like Lightroom, which allows you to "save" your edit steps and apply them en masse to a large number of photos at once.

	~~==Single photo==~~

	~~For modifying a single photo, you can use Lightroom, and edit an individual photo.~~

	==En masse==		==En masse==

Admin: /* En masse */

2016-07-31T04:34:19Z

En masse

← Older revision		Revision as of 04:34, 31 July 2016
Line 126:		Line 126:

	==En masse==		==En masse==

			In Lightroom you can apply the set of effects you've applied for one photo, to an entire group of photos. Select all of the photos you want to apply the effect to. Then, keeping those photos selected, make the "active" photo the photo whose effects you want to apply.

			Then click "Apply effects..." button. This will apply the same set of effects to all of the photos.

	=Creating Video from Image Files=		=Creating Video from Image Files=

Admin: /* Single photo */

2016-07-31T04:33:13Z

Single photo

← Older revision		Revision as of 04:33, 31 July 2016
Line 123:		Line 123:
	==Single photo==		==Single photo==

	For modifying a single photo, you can use Lightroom, and edit an individual photo~~. Once you select a large number of photos in the tray of photos at the bottom, you can (right click? click apply photos?).~~		For modifying a single photo, you can use Lightroom, and edit an individual photo.

	~~This will take the list of effects that you applied to one photo, and apply them to all the photos~~.

	==En masse==		==En masse==

Admin: /* Single photo */

2016-07-31T04:32:11Z

Single photo

← Older revision		Revision as of 04:32, 31 July 2016
Line 118:		Line 118:

	=Applying Effects=		=Applying Effects=

			For editing photos - single or multiple - I recommend using a tool like Lightroom, which allows you to "save" your edit steps and apply them en masse to a large number of photos at once.

	==Single photo==		==Single photo==

			For modifying a single photo, you can use Lightroom, and edit an individual photo. Once you select a large number of photos in the tray of photos at the bottom, you can (right click? click apply photos?).

			This will take the list of effects that you applied to one photo, and apply them to all the photos.

	==En masse==		==En masse==

Admin: /* Flags */

2016-07-31T04:08:45Z

Flags

← Older revision		Revision as of 04:08, 31 July 2016
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	<p><a href="https://vimeo.com/176894252">Raspberry Pi Timelapse: Midnight to Mid-Morning (15 fps)</a> from <a href="https://vimeo.com/charlesreid1">charlesreid1</a> on <a href="https://vimeo.com">Vimeo</a>.</p>		<p><a href="https://vimeo.com/176894252">Raspberry Pi Timelapse: Midnight to Mid-Morning (15 fps)</a> from <a href="https://vimeo.com/charlesreid1">charlesreid1</a> on <a href="https://vimeo.com">Vimeo</a>.</p>
	</html>		</html>

			==Continued Ffmpeg Notes==

			Find continued notes on the use of Ffmpeg specifically for timelapses over at the [[Timelapse/Ffmpeg]] page.

	=Flags=		=Flags=