Re: Module naming -- processing 3D JPEG files...
Neither wise nor a sage, but: Is there a more general term than "Stereo", which implies 2: left and right? What about other composite views that make an image appear to have depth/perspective? E.g. Hologram (Holo?) Is there a term that covers the space of all composite views and/or related images? Alternatively, might one pair for other reasons? (Image::Pair::format)? Image::Group::Stereo::format? Image::Container::Stereo::format? Image::Composite::Holo::JPG? Image::Diffraction::XRay::bmp? Image::Resonance::Slice::tiff? Not my field, obviously. But I do wonder if taking a second level namespace for this is the best choice... Of course, no one wants infinitely long names. But maybe there's a happy medium. (Sorry, no pun intended.) I'm not necessarily opposed to "stereo" (nor would it matter if I were), but you asked for feedback, and that's what comes to mind... Timothe Litt ACM Distinguished Engineer -- This communication may not represent the ACM or my employer's views, if any, on the matters discussed. On 02-May-17 23:20, BC wrote: > Oh great and wise sages of the CPAN wisdom, > > I'd like some feedback and advice for naming some modules I am > contemplating. > >Image::Stereo::MPO >Image::Stereo::JPS >Image::Stereo::JPG > > These would be modules used for basic manipulation of > stereographic JPEG-based images. > > Here's a bit of background for the interested. > > MPO -- Multi-Picture Format > >Digital 3D cameras (yes, there are such things) most commonly >store L/R images as a pair of JPEG files in a container file >with the extension ".MPO". The container file also contains >additional meta data, beyond the standard JPEG fields, that >describes relationships between the images. (Actually, to be >more accurate, MPO files can store any number of related >images, such as for panoramics. But in practice, in the wild, >MPO files contain stereographic pairs.) > > JPS -- JPEG Stereo Format > >Another older format for stereographic pairs has an extension >of ".JPS". This is a JPEG file with the R/L images 'glued' >together side-by-side and some additional meta data (EXIF). > > JPG > >And L/R stereo pairs are often just combined into a single >JPEG file without any special meta data and may be in a >side-by-side or under-over format. > > A common thing to want to do is to take L/R stereo pair of JPEG > files and combine them into a single MPO or JPS file, and > likewise take an MPO or JPS file and split it out into two > separate JPEG files. That's what these modules will do. > > OK -- probably more than you wanted to know. > > As for the module names, stereographic images are commonly > referred to as 3D images, but there are other associations for > the term, plus I'm guessing that "::3D::" would be a no-no for > CPAN module naming. Stereographic images are also shorthanded as > just "stereo" which is a more reasonable name length. > > ...BC >
RE: Module naming -- processing 3D JPEG files...
Which would give you something like Image::TriD::StereoPairs::MPO I'm liking 'StereoPairs'. Unless there are strenuous objections, I plan to go with... Image::3D::StereoPair::MPO Now all I have to do is write the software. :-) Thanks to all for the feedback. ...BC -- ---[ bill.co...@alumni.unh.edu ]-- Bill Costa New Hampshire, USA http://pubpages.unh.edu/~wfc WORK: +1-603-862-3056 HOME: +1-603-435-8526 [ No good deed... Goes unpunished. ]--
Re: Module naming -- processing 3D JPEG files...
> > Some would consider the following to be even more general and > thus better: > >Image::3D::Pairs::MPO >Image::3D::Pairs::JPS >Image::3D::Pairs::JPG > >Image::3D::Lenticular >Image::3D::VR >Image::3D::Holo >Image::3D::DepthMap > > But wouldn't this break the rule for an uppercase letter as the > first character? A number as the first character of a subnamespace is fine, as long as it is not the first character of the whole package name. -Dan
RE: Module naming -- processing 3D JPEG files...
Is there a more general term than "Stereo", which implies 2: left and right? Well as it would apply to stereographic imaging, that would be "binocular", which is definitely two and only two. But there is a very strong association of that term with the paired telescopes commonly called binoculars. Not my field, obviously. But I do wonder if taking a second level namespace for this is the best choice... Your point about trying to narrow it down to image pairs is well taken. Referring to the images themselves as 'stereo pairs' or '3D pairs' is very common in the stereographic community. What about other composite views that make an image appear to have depth/perspective? There are indeed other stereographic formats that can involve more than two images. For example 3D lenticulars are best done with arrays of at least 3 or more images and there have been many 3D cameras that have been purpose-built for the technique: https://upload.wikimedia.org/wikipedia/commons/thumb/4/48/Nimslonew.jpg/300px-Nimslonew.jpg http://www.3dham.com/stereo_cameras/Nishikacamera320.jpg And of course static 3D VR images, and 3D panoramic images can also involve using an array of images beyond single pairs. E.g. Hologram (Holo?) Is there a term that covers the space of all composite views and/or related images? It sometimes gets applied that way, but a hologram is a unique and different process that yields a true 3 dimensional image of an object not a scene. You can think of VR as an image that surrounds the viewer, where with holography the viewer can surround an object. And of course, 3D images can also be generated from 3D computer modeling, and capturing depth maps. https://en.wikipedia.org/wiki/Depth_map https://phys.org/news/2016-06-imaging-technique-image-depth-monocular.html As for the 2nd level, the term stereographic is certainly the least ambiguous, since 'stereo' by itself is even more commonly used to mean stereophonic. So you could do: Image::Stereographic::Pairs::MPO Image::Stereographic::Pairs::JPS Image::Stereographic::Pairs::JPG Image::Stereographic::Lenticular Image::Stereographic::VR Image::Stereographic::Holo Image::Stereographic::DepthMap But this feels like something out of the Department of Redundancy Dept. since what you are saying is "image-solid-image". (Stereo is the Greek word for solid.) So alternatively, the more concise: Image::Stereo::Pairs::MPO Image::Stereo::Pairs::JPS Image::Stereo::Pairs::JPG Image::Stereo::Lenticular Image::Stereo::VR Image::Stereo::Holo Image::Stereo::DepthMap Some would consider the following to be even more general and thus better: Image::3D::Pairs::MPO Image::3D::Pairs::JPS Image::3D::Pairs::JPG Image::3D::Lenticular Image::3D::VR Image::3D::Holo Image::3D::DepthMap But wouldn't this break the rule for an uppercase letter as the first character? So I'm thinking the "stereo" 2nd level namespace proposal would be a good balance between descriptiveness and brevity, and taxonomically I think you can argue that "Image::Stereo" is unambiguous. But "3D" looks good to me too, if it is allowed. ...BC -- ---[ bill.co...@alumni.unh.edu ]-- Bill Costa New Hampshire, USA http://pubpages.unh.edu/~wfc WORK: +1-603-862-3056 HOME: +1-603-435-8526 [ No good deed... Goes unpunished. ]--
Re: Module naming -- processing 3D JPEG files...
On 05/03/2017 04:12 AM, Smylers wrote: BC writes: I'd like some feedback and advice for naming some modules I am contemplating. Image::Stereo::MPO Image::Stereo::JPS Image::Stereo::JPG Sounds good to me — you've clearly considered this carefully, and your explanations make sense. Smylers I concur with Smylers. +1
Re: Module naming -- processing 3D JPEG files...
Neither wise nor a sage, but: Is there a more general term than "Stereo", which implies 2: left and right? What about other composite views that make an image appear to have depth/perspective? E.g. Hologram (Holo?) Is there a term that covers the space of all composite views and/or related images? Alternatively, might one pair for other reasons? (Image::Pair::format)? Image::Group::Stereo::format? Image::Container::Stereo::format? Image::Composite::Holo::JPG? Image::Diffraction::XRay::bmp? Image::Resonance::Slice::tiff? Not my field, obviously. But I do wonder if taking a second level namespace for this is the best choice... Of course, no one wants infinitely long names. But maybe there's a happy medium. (Sorry, no pun intended.) I'm not necessarily opposed to "stereo" (nor would it matter if I were), but you asked for feedback, and that's what comes to mind... On 02-May-17 23:20, BC wrote: > Oh great and wise sages of the CPAN wisdom, > > I'd like some feedback and advice for naming some modules I am > contemplating. > >Image::Stereo::MPO >Image::Stereo::JPS >Image::Stereo::JPG > > These would be modules used for basic manipulation of > stereographic JPEG-based images. > > Here's a bit of background for the interested. > > MPO -- Multi-Picture Format > >Digital 3D cameras (yes, there are such things) most commonly >store L/R images as a pair of JPEG files in a container file >with the extension ".MPO". The container file also contains >additional meta data, beyond the standard JPEG fields, that >describes relationships between the images. (Actually, to be >more accurate, MPO files can store any number of related >images, such as for panoramics. But in practice, in the wild, >MPO files contain stereographic pairs.) > > JPS -- JPEG Stereo Format > >Another older format for stereographic pairs has an extension >of ".JPS". This is a JPEG file with the R/L images 'glued' >together side-by-side and some additional meta data (EXIF). > > JPG > >And L/R stereo pairs are often just combined into a single >JPEG file without any special meta data and may be in a >side-by-side or under-over format. > > A common thing to want to do is to take L/R stereo pair of JPEG > files and combine them into a single MPO or JPS file, and > likewise take an MPO or JPS file and split it out into two > separate JPEG files. That's what these modules will do. > > OK -- probably more than you wanted to know. > > As for the module names, stereographic images are commonly > referred to as 3D images, but there are other associations for > the term, plus I'm guessing that "::3D::" would be a no-no for > CPAN module naming. Stereographic images are also shorthanded as > just "stereo" which is a more reasonable name length. > > ...BC > signature.asc Description: OpenPGP digital signature
Re: Module naming -- processing 3D JPEG files...
BC writes: > I'd like some feedback and advice for naming some modules I am > contemplating. > >Image::Stereo::MPO >Image::Stereo::JPS >Image::Stereo::JPG Sounds good to me — you've clearly considered this carefully, and your explanations make sense. Smylers -- http://twitter.com/Smylers2
Module naming -- processing 3D JPEG files...
Oh great and wise sages of the CPAN wisdom, I'd like some feedback and advice for naming some modules I am contemplating. Image::Stereo::MPO Image::Stereo::JPS Image::Stereo::JPG These would be modules used for basic manipulation of stereographic JPEG-based images. Here's a bit of background for the interested. MPO -- Multi-Picture Format Digital 3D cameras (yes, there are such things) most commonly store L/R images as a pair of JPEG files in a container file with the extension ".MPO". The container file also contains additional meta data, beyond the standard JPEG fields, that describes relationships between the images. (Actually, to be more accurate, MPO files can store any number of related images, such as for panoramics. But in practice, in the wild, MPO files contain stereographic pairs.) JPS -- JPEG Stereo Format Another older format for stereographic pairs has an extension of ".JPS". This is a JPEG file with the R/L images 'glued' together side-by-side and some additional meta data (EXIF). JPG And L/R stereo pairs are often just combined into a single JPEG file without any special meta data and may be in a side-by-side or under-over format. A common thing to want to do is to take L/R stereo pair of JPEG files and combine them into a single MPO or JPS file, and likewise take an MPO or JPS file and split it out into two separate JPEG files. That's what these modules will do. OK -- probably more than you wanted to know. As for the module names, stereographic images are commonly referred to as 3D images, but there are other associations for the term, plus I'm guessing that "::3D::" would be a no-no for CPAN module naming. Stereographic images are also shorthanded as just "stereo" which is a more reasonable name length. ...BC -- ---[ bill.co...@alumni.unh.edu ]-- Bill Costa New Hampshire, USA http://pubpages.unh.edu/~wfc WORK: +1-603-862-3056 HOME: +1-603-435-8526 [ No good deed... Goes unpunished. ]--
