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Thursday, 21 June 2018 Dereel Images for 21 June 2018
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teevee, the day after
Topic: multimedia, technology Link here

Into the office this morning, and found that restoring my video files for teevee had completed. OK, put the new disk in teevee and see what happens. For once, everything Just Worked. All I had to do was re-download what images I could still find (some had expired). That proved to be round 50 GB, but what's that nowadays?


Huevos a la tigre again
Topic: food and drink, opinion Link here

Another attempt at huevos a la tigre today. The biggest issue I now have is what to serve them in. I want two fried eggs, not one, and somehow the pots I have seem cramped:


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A new lens
Topic: photography, technology, general Link here

So I have a discount voucher from eBay for $310, though I was able to cancel the sale and buy the freezer with discount. I have my cake and I've eaten it!

Am I still entitled to the discount voucher? They didn't say anything about what would happen if the seller accepted the return, though I had mentioned that I had asked for a return. Still, consistency was never an eBay virtue, so the sooner I apply the voucher, the better.

On Tuesday I missed out on buying a lens (M.ZUIKO DIGITAL ED 75 mm f/1.8) on eBay. I had sniped $526, but the snipe had failed, and the lens had gone for $515. There was another one going, but he wanted a starting bid of $550—or offer. OK, offer the $515. Got a counteroffer from him for $530. That sounds reasonable enough; after the voucher, it would be $220.

Set to pay. No mention of the discount on the page. No, I'm not going through that again. Get eBay to call me and walk me through it. Yes, this time I don't need to enter the code there, just two pages further on after I have already committed to buy it.

As I was just thinking, consistency was never an eBay virtue. What a mess these people are! But yes, I got the item for $220. Somehow I think that, financially at any rate, this experience has compensated for my annoyances with eBay.


cpfind issue
Topic: photography, technology Link here

Response from Thomas Modes on the Hugin mailing list today. It seems that the issue was a bug with fisheye lenses, which would explain why nobody has reported it before. He's committed something, but I can't be bothered to test it yet. He didn't say what good --multirow is, so I'll just ignore it.


More baked beans
Topic: food and drink, opinion Link here

Another lot of baked beans today. I think I've given up on putting beef stock powder in the beans, so the current ingredient list is:

quantity       ingredient       step
750 g       dried white beans       1
400 g       onion       2
75 g       oil for frying       2
480 g       tinned tomatoes (800 g can)       3
25 g       tomato purée       3
      smoked ham skin to taste       3
up to 500 ml       water (to cover)       3
45 g (total)       salt       4

How long do you cook? These are the same beans as I used for cassoulet two weeks ago. Then I was surprised that the beans only needed an hour's cooking, and here I had written 4 hours. But after two hours they were barely cooked, as I discovered a little late. So one hour for boiling, at least 3 hours for baking it is.


Steak and kidney pie
Topic: food and drink, opinion Link here

It's been forever since we last made steak and kidney pie, so long that I had forgotten that I had a recipe. In the last couple of days I've researched again and basically come up with the same recipe as before, except with onions and without liquid. And this time I cooked the meat before making individual pies.

 
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How long? And at what temperature? Joy of Cooking says 350° F, whatever that is (proves to be about 177°). But that was far too hot. I turned it down to 160°, still too much:

 
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Cooked for about an hour, by which time it was cooked but rather dry. My original supplement of water to 10% of the weight of the meat sounds like a good idea.

So is putting them in individual pots:

 
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How much salt? I'm coming to the general rule of thumb that in this kind of food (meat or vegetable based, cooked) I should put 2% by weight of salt. The recipes I found in the books either completely ignored salt, or just said “add salt and pepper”. Last time round (I now discover) I used 10 g for 750 g of meat, and this time, to be cautious, I used 20 g for 1.5 kg meat. That's about 1.3% each time, and it wasn't enough. Next time I'll do 2%.


Friday, 22 June 2018 Dereel Images for 22 June 2018
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Winter comes
Topic: general Link here

The last few days we have had mild frosts (ice on the grass), but today we finally had frozen water:

 
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One of the most interesting things I've found from having an infrared thermometer is how different temperatures are in different places. The ice was only about 1.5 mm thick, but I measured a very constant -2.7°. Elsewhere I measured down to -4.1°, but the weather station, 3.5 m above the ground, registered a minimum of 1.8°.


Improving Hugin processing
Topic: technology, photography, opinion Link here

So now I have a better understanding of how Hugin processes panoramas. Spent a bit of time playing around with my Hugin script, and after a few surprises added:

   cropstack.php 0*
+  # Create project file
+  echo creating project file
+  pto_gen -o my.pto 0*
+  cpfind -o my.pto my.pto
+  # Does this help? XXX
+  celeste_standalone -i my.pto -o my.pto
+  cpclean -o my.pto my.pto
+  # options: -a  auto align mode
+  #          -l  level horizon
+  #          -s  select projection
+  autooptimiser  -a -l -s -o my.pto my.pto
   echo Make your panorama, save to $NAME.tif
   xtset Creating $OUTFILE, save to $NAME.tif
   nice -5 hugin [01]?

What were the surprises? The first time round I got some really poor control points. After a bit of investigation, it proved that running celeste_standalone is really necessary to clean up cloud images and similar. In the past I had thought that it was pretty ineffective, but that was because every time I ran it, it had already run. Also, the last program is called autooptimiser, and not autooptimizer.

The good news is that I have found out (I think) how to stop Hugin from changing colour and exposure. These are done by parameters to autooptimiser, so simply omitting them solves the problem—almost. I have still found minor differences in the image parameters that I need to investigate. But at any rate I can now automate all my processing up to positioning, maybe masking, cropping and stitching. The next step is to do this for all panoramas so that I can just stitch one after the other.


Transfer speeds in relation
Topic: technology, multimedia, opinion Link here

In the past I have done my backups for teevee to an external USB disk. It made sense to connect it directly to teevee—I thought. But though the disk can handle USB 3.0, teevee can't. It proved much faster to connect the disk to eureka with USB 3.0 and back up over the (1000 Mb/s) Ethernet.

As a result, I now have round 24 TB of total storage attached to eureka:

=== grog@eureka (/dev/pts/29) ~ 21 -> df -c
Filesystem  1048576-blocks      Used     Avail Capacity  Mounted on
/dev/ada0p2         39,662    27,043     9,445    74%    /
devfs                    0         0         0   100%    /dev
/dev/ada0p4         39,662    12,965    23,524    36%    /destdir
/dev/ada0p5         29,000     4,333    22,347    16%    /photowork
/dev/ada1p2      2,820,026 2,517,020    77,404    97%    /home
fdescfs                  0         0         0   100%    /dev/fd
procfs                   0         0         0   100%    /proc
/dev/ada2p1      7,629,565 4,625,637 2,927,632    61%    /Photos
/dev/da1p1       1,907,067 1,606,582   147,919    92%    /dump
/dev/da3p1       3,815,019 2,898,668   611,149    83%    /videobackup
/dev/da2p1       7,629,565 4,625,809 2,927,460    61%    /photobackup
total           23,909,569 16,318,059 6,746,883    71%

There's another 6 TB on teevee, but it can't see eureka:/photobackup.


This page contains (roughly) yesterday's and today's entries. I have a horror of reverse chronological documents, so all my diary entries are chronological. This page normally contains the last two days, but if I fall behind it may contain more. You can find older entries in the archive. Note that I often update a diary entry a day or two after I write it.     Do you have a comment about something I have written? This is a diary, not a “blog”, and there is deliberately no provision for directly adding comments. But I welcome feedback and try to reply to all messages I receive. See the diary overview for more details. If you do send me a message relating to something I have written, please indicate whether you'd prefer me not to mention your name. Otherwise I'll assume that it's OK to do so.


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