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rawopint Time-lapse examples

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rawopint Time-lapse examples
« on: 19 / February / 2016, 05:44:13 »
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Hello,

I open here a new thread for time-lapse examples produce with script rawopint.lua.

By now more than 100,000 photos that have emerged with the script, I can already tugging of some experience with this script. The enthusiasm does not diminish...

http://chdk.wikia.com/wiki/Lua/Scripts:_Raw_Meter_Intervalometer

Especially with great dynamism in dawns and transitions has been shown that you cannot order belongs to a RAW processing.

The essential information of the first video I've attached a table.

 


The first part of the second video was created with the G1x (RAW and JPG). The interval was set to 3s. Unfortunately I had a problem with the SD card in the camera so that the interval between 3 and 5s varies. This can be recognized by the non-continuous movements.
The second part is formed with the SX230 (only JPG) and an interval of 2s.





« Last Edit: 26 / February / 2016, 06:05:05 by acseven »

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Offline udo

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Re: rawopint Time-lapse examples
« Reply #1 on: 23 / February / 2016, 10:48:14 »
Thanks for the examples!

How did you do the smooth zoom in/out and panning of the scenes?

Re: rawopint Time-lapse examples
« Reply #2 on: 24 / February / 2016, 05:24:55 »
Thanks for the examples!

How did you do the smooth zoom in/out and panning of the scenes?

Is just a continuous crop from the full picture (4000*3000) to HD picture (1920*1080)

I’m using for this processing MATLAB. MATLAB is scientific script language with make the processing very easy. This might be not the smartest way to do this because you have no preview but I’m using MATLAB already for other thinks. A script in MATLAB looks like this:

Code: [Select]
% Read picture
% 'picture' is a 3 dimensional matrix
picture = imread('IMG_0001.jpg');
% crop picture
picture_zoom = (y1:y2,x1:x2,1:3)
% rezise picture to HD
picture_HD=imresize(picture_zoom,[1080 1920],'lanczos3');
% write picture to file
imwrite(picture_HD,'IMG_0001_HD.jpg','jpg','Quality',100)
So I have only calculate x1, x2, y1 and y2 smoothly.

Other lapser rendering the video in 4K and doing the zooming with a video processing software.


Re: rawopint Time-lapse examples
« Reply #3 on: 24 / February / 2016, 07:11:34 »
the video is impressive.

you may try blackmagic davinci resolve for editing and color grading, the software itself is free, but you need to have a graphic card to run that. online tutorial are easily available. Just split each sequence into different folder, you can import the DNG or JPG directly to it as a movie clip, it will follow the file name number.

I am using fast intervalometer script for fastest shooting possible. usually need to set a rather conservative exposure compensation to protect the highlight. but sometimes it also fail as the scene is becoming brighter.

Looks like this RAW metering intervalometer is a better choice. I will try this in my next timelapse.



Re: rawopint Time-lapse examples
« Reply #4 on: 25 / April / 2016, 13:28:27 »
Here is my last time-lapse...


Interesting may be the sunsets in scene 4-6.
Scene 4 was created using the G1x and an ND3 (1000). As you can see the waves are smoothed by the prolonged exposure times. However, I have the color shift, which is caused by the filter is not corrected.
Scene 5 we see a sunset without filters.
Scene 6 is also without filters. However, I have always calculated here from 5 images an averaged picture
See The effect is similar to the ND filter.

Scene 7 shows very well the transition in smoothing the waves to the long exposure times.

All parameters and settings can be found in the LOG file. However, I sometimes use only every second or fourth image so you have to take this into account at the interval.


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Offline udo

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« Last Edit: 25 / June / 2016, 08:21:05 by udo »


Re: rawopint Time-lapse examples
« Reply #7 on: 31 / July / 2016, 05:16:24 »
Hello,

here comes again a lapse of mine.

The interval of each scene is 3.0s, 3.0s, 2.3s, 2.0s, 2.0s, 2.0s, 2.0s.
Especially when driving around and the ships the 2.0s are already close.

The scene from 0:20 I have unfortunately received only in JPG and with the wrong white balance. I could not completely correct in post processing. Therefore, we see a change in the color.

Sometimes many small white spots appear in the video. Perhaps it is for most not on. These are petals. But since I did not feel like they all to cut out ...

Greetings Jörg




Re: rawopint Time-lapse examples
« Reply #8 on: 28 / February / 2017, 12:47:10 »
The use of ultra-wide angle gives a completely different perspective at a time lapse.

This is my first real test video with the Canon EOS M3 and CHDK.
Interval was 4s. Focal length 10mm at APS-C. (EF-S 10-18mm).
Works really well…



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Offline udo

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Re: rawopint Time-lapse examples
« Reply #9 on: 01 / March / 2017, 08:58:01 »
The use of ultra-wide angle gives a completely different perspective at a time lapse.

This is my first real test video with the Canon EOS M3 and CHDK.
Thanks! Very interesting!
Which rawopint settings did you adapt from e.g. your S110 config? (ISO, but also...)

 

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