lossless compression of still images - recommendations?

Colin Law clanlaw at gmail.com
Sat Feb 18 21:11:59 UTC 2017


On 17 February 2017 at 21:11, Robert Heller <heller at deepsoft.com> wrote:
> Use tar+bzip2.

I thought that the OP meant that he wanted to compress the series of
images, making use of the fact that they are little changed from one
image to the next. Much like video is stored.

Colin

>
>
> At Fri, 17 Feb 2017 10:48:16 -0800 "Ubuntu user technical support,  not for general discussions" <ubuntu-users at lists.ubuntu.com> wrote:
>
>>
>> I'm making a long series of exposures of a landscape where there will be
>> only very small (but potentially significant) changes from frame to
>> frame. Basically I'll take a 5MP image every 5 seconds for a year, I'll
>> want to timestamp the images and keep them all for later
>> post-processing, as well as being able to retrieve the image closest in
>> time to a specified time and date of interest (which I can't predict.)
>>
>> I want the retrieved image to be faithful to the original, so I'd like
>> to minimize storage needs by compressing the mostly unchanging parts
>> (the landscape won't be moving much.)
>>
>> Does anyone have a recommendation for a program to do this?
>>
>> Dave
>>
>>
>
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