Still loads of noise. Time for an extreme mask file:
That’s just a small area around the nest-box entrance. But still an awful lot of images
I wonder if motion is actually using the mask file. Presumably there’s a debug option I can switch on …
Nothing here to set the world on fire. Just trees and plants and cats and scribbles.
Still loads of noise. Time for an extreme mask file: That’s just a small area around the nest-box entrance. But still an awful lot of images I wonder if motion is actually using the mask file. Presumably there’s a debug option I can switch on …
Still loads of noise. Time for an extreme mask file:
That’s just a small area around the nest-box entrance. But still an awful lot of images
I wonder if motion is actually using the mask file. Presumably there’s a debug option I can switch on …
The tweaks don’t seem to be having much effect. Even with the lightswitch option set to 80, and the smart_mask_speed set to 10, it’s still pretty wild and windy out there. # Dynamically create a mask file during operation (default: 0) # Adjust speed of mask changes from 0 (off) to 10 (fast) smart_mask_speed 10 … Continue reading “Mask files, sizes, and motion.conf tweaks”
The tweaks don’t seem to be having much effect. Even with the lightswitch option set to 80, and the smart_mask_speed set to 10, it’s still pretty wild and windy out there.
# Dynamically create a mask file during operation (default: 0) # Adjust speed of mask changes from 0 (off) to 10 (fast) smart_mask_speed 10 # Ignore sudden massive light intensity changes given as a percentage of the picture # area that changed intensity. Valid range: 0 - 100 , default: 0 = disabled lightswitch 80
So it has to be the mask file. The way the mask file works is by using an identically sized image as the webcam and making all areas to be monitored white, and all not to be monitored black. Or is it the other way around? I did this using the gimp and after a couple of false starts it turned out to be pretty easy. Here’s my rough notes:
You need to save this as a ‘pgm’ file. For some reason a pgm file is huge compared to a jpeg, e.g.
-rw-r--r-- 1 dougie dougie 691254 2011-05-25 14:24 mask1 - 25May2011_1407.54-00.pgm -rw-r--r-- 1 dougie dougie 12639 2011-05-25 14:26 mask1 - 25May2011_1407.54-00.jpg
although I’m sure it’s possible to reduce the size there doesn’t seem much need at the moment.
Now it’s just a matter of pointing the appropriate option in motion.conf at the mask file and seeing what happens.
Here’s my first attempt:
Hmmmm, there are a few options in the motion.conf file I haven’t seen before. Or at least, that I can’t recall having seeing before. These look promising: # Dynamically create a mask file during operation (default: 0) # Adjust speed of mask changes from 0 (off) to 10 (fast) smart_mask_speed 0 # Ignore sudden massive … Continue reading “motion.conf options”
Hmmmm, there are a few options in the motion.conf file I haven’t seen before. Or at least, that I can’t recall having seeing before. These look promising:
# Dynamically create a mask file during operation (default: 0) # Adjust speed of mask changes from 0 (off) to 10 (fast) smart_mask_speed 0 # Ignore sudden massive light intensity changes given as a percentage of the picture # area that changed intensity. Valid range: 0 - 100 , default: 0 = disabled lightswitch 0
The trouble with creating a mask file is that it assumes the camera stays fixed in the same position, and that’s pretty unlikely. So I’ll try tweaking these settings and see what happens. Far less effort. Currently running at about 1000 images an hour. Let’s see if I can get that down a bit …
I frequently drive through Brancepeth on my way to Low Barns and recently I’ve been watching with fascination the unfolding drama of this bracket fungus. This is Dryad’s Saddle (Polyporus squamosus), also known as Pheasant’s Back Mushroom, presumably due to the distinctive surface of the top of the fungus that you can’t see in this photo. It’s fruiting from a pruning wound on a sycamore tree (Acer pseudoplatanus) next to the main road in Brancepeth.
I’m passing this tree and fungus almost daily and watching with wonder to see if it’s just going to get bigger and bigger. Who knows, one morning I may drive by and discover it’s gone. Disappearing as suddenly and mysteriously as it arrived.
Photos make a great screensaver and the xscreensaver with glslideshow option is what I use. I often use it for ident practice, e.g. plants, birds etc. The image appears randomly on the screen and I think, I know what that is…
At the moment I have various scripts that can create ad-hoc collections of images based on the embedded tags. I also overlay a caption over the images using the convert bit of imagemagick and that works well.
What I want to do is have a time delay so that an image appears for say, 10 seconds, and then a caption appears over it. The filename would be ok. I can control how long the image appears in xscreensaver, and it’s surprisingly easy to train yourself to not-look at the filename or caption, but I’m curious as to whether it’s possible (without too much effort) to add the caption after some time-out period.