Is there any way to export croped detected faces images from normal
images in Picasa?
Is there any way to export similar person not naming them(like
person1 and person2 etc. and maybe with probabilities)?
Is there any way to detect only one person per folder?
Once you have labeled each face within Picasa, there will be a file called .picasa.ini in the same folder as the photos. Its contents look like this:
[Contacts2]
a5719c14e1f43ecd=Bob;;
3df0fc0982a61960=Tom;;
[188698.jpg]
faces=rect64(4787040aa5044c1d),a5719c14e1f43ecd
backuphash=47212
[188766.jpg]
faces=rect64(49243a1b62da69d0),a5719c14e1f43ecd
backuphash=47212
[188804.jpg]
faces=rect64(283512ee998ed795),3df0fc0982a61960
backuphash=36479
[188803.jpg]
faces=rect64(778799bdf0c8f784),3df0fc0982a61960
backuphash=36479
[188812.jpg]
faces=rect64(28350000ae21dc8b),3df0fc0982a61960
backuphash=36479
[188806.jpg]
faces=rect64(44643314e5f5afd9),3df0fc0982a61960
backuphash=36479
You can use this data to calculate the coordinates of each rectangle you want to crop.
For more details on the .picasa.ini format, see this question:
Automatic face detection using Picasa API to extract individual images
Related
I have images with people tagging information in xml format. I wish to edit this information and also add it to pictures that do not yet have it. By looking at the xml I assume it is based on the people tagging used in the microsoft imaging component.
I haven't quite understood the format, but I understood it sof far, that I can alter or gemerate the xml, I just do not know where to write it in the image. I am probably just doing some stupid mistake, because I am not experienced with these image metadatas. So if you think I'm just on the wrong track and that can be done much simpler, please tell me.
In those images that already contain this xml, I can use search and replace to update the xml. However I have a lot of pictures that do not yet contain that information and I do not know where I should write it to inside the image.
Images that already contain this information can be read with exiftool as follows:
exiftool -xmp -b existingTags.JPG
The result is the following xml:
<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?> <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="XMP
Core 4.4.0-Exiv2"> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> <rdf:Description rdf:about=""
xmlns:xmp="http://ns.adobe.com/xap/1.0/" xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:MP="http://ns.microsoft.com/photo/1.2/" xmlns:MPRI="http://ns.microsoft.com/photo/1.2/t/RegionInfo#"
xmlns:MPReg="http://ns.microsoft.com/photo/1.2/t/Region#" xmp:Rating="0"> <dc:subject> <rdf:Bag> <rdf:li>Valeriya
</rdf:li> </rdf:Bag> </dc:subject> <MP:RegionInfo rdf:parseType="Resource"> <MPRI:Regions> <rdf:Bag> <rdf:li
MPReg:Rectangle="0.48, 0.418, 0.059333, 0.089" MPReg:PersonDisplayName="findus_l"/> </rdf:Bag> </MPRI:Regions>
</MP:RegionInfo> </rdf:Description> </rdf:RDF> </x:xmpmeta> <?xpacket end="w"?>
However I cannot write the information using exiftool. When I ran this command, it simply reads the information again, instead of writing the contents of the file to the image:
exiftool -xmp<=alteredXMP.txt existingTags.JPG
A bit of research has shown me, that exiftool can only write specific xmp tags, and the people tagging tags from windows imaging component do not seem to be part of this.
Where in the image file should I write the information? Can I somehow find this spot programmatically and then just insert the xml there?
I am using Kotlin as programming language but I don't mind having to call command line functions or other programs.
Background: I have a Synology Diskstation and use the included software called photo station. The photo station supports tagging of people on the images and uses this given format. I like the photo station in many ways, but the face recognition is bad, so I want to use my own but have photo station be able to read it.
The data you are trying to write is part of the Microsoft Region Structure. XMP Structured data is a complex subject but you should be able to add the data with exiftool by writing region names to the RegionPersonDisplayName tag and the region dimensions to the RegionRectangle. Using the data in your example, the command would be:
exiftool -RegionPersonDisplayName=findus_l -RegionRectangle="0.48, 0.418, 0.059333, 0.089" /path/to/files
If you have to write multiple regions, you can just add them on, but you must keep names and the matching dimensions in the same order. For example
exiftool -RegionPersonDisplayName=findus_l -RegionRectangle="0.48, 0.418, 0.059333, 0.089" -RegionPersonDisplayName="John Smith" -RegionRectangle="0.37645533, 0.04499886, 0.35111009, 0.26633097" /path/to/files
These commands would overwrite any existing region data. If you are adding new names without overwriting, you would change the equal signs to PlusEqual +=.
Which is the better approach for storing image name in database? I have two choices first one is to store just image name e.g. apple.png and second choice is to store full image URL e.g. abc.com/src/apple.png.
Any help will be appreciated. Thanks.
Best practice is not save full path to image like abc.com/src/apple.png but saving specific domain path to image. Ex:
Users image : /user/{id}/avatar/img.png
Product image: /product/{id}/1.png
In this case you avoid sticking images to defined server, server path, url etc. For example, you will decide to move all your images to another server, in this case you don't need to change all records in DB.
The 2 answers already covered it pretty well. It is indeed best practice to save the directory path instead of saving the entire URL path. Some of the reasons were already covered, such as making it easy to move your folders to another server without having to make any changes whatsoever in your file logic.
What you could do, is also have everything in one directory, refer to that, and then just save the image name. However, I would not recommend that. The other structure simply makes it way easier to navigate and look through. Good file structure is something you'll thank yourself for later in case you ever have to go through things manually for one reason or another.
With that said, I'd like to add this trick into the mix:
$_SERVER['DOCUMENT_ROOT']. This always makes you start from the root directory as opposed to having to do tedious things, such as ../../ etc. It looks like a mess.
So in the end as an image path, you'd have something like:
<img src="<?php echo $_SERVER['DOCUMENT_ROOT'].'/'.$row['filePath']; ?>" >
$row['filePath'] being your stored filepath from the database.
Depending on how your file path is saved, you can lose the / in the image source link.
first of all you need to upload all images in public folder of your project , so no need to save domain name
If you are storing all images in one directory , then there is no problem storing only imagename in database
you can easily access images like <img src="/foldername/imagename.jpg" />
but if in your project there are multiple directory like
profile :to save user avatar image ,
background : to save background images,
then it is better to save image with path in database like "/profile/avatar.jpg"
so you can access image like <img src="imagepathhere" />
Another common way is to create image table with cols
id
type (enum or int)
name (file name)
Define in your app (better in model) types like
USER_AVATAR = 1;
PRODUCT_IMG = 2;
Define path map foreach image type like:
$paths = [
USER_AVATAR => '/var/www/project/web/images/users',
...
];
and use id's from this image table in another tables. It is called polymorphic association. It is most flexible way to store images.
We are currently trying to merge multiple PDFs and create a PDF/A (1B) out of it.
Currently we face a problem when we want to fix the color profiles. The PDF we receive has no embedded color profiles, so during the merge functionality of PDFBox, no OutputIntents are merged. So in the last step we try to add the color profiles.
If we do not add any color profile, we get validation issues for RGB and CMYK. If we add both color profiles to the PDDocumentCatalog, then only the validation issues for the first one are gone. So if we add RGB first, we only get CMYK validation issues and vice versa.
Here is a part of the code when we add the color profiles:
public void convertToPDFA(PDDocument doc, String file){
PDMetadata metadata = new PDMetadata(doc);
PDDocumentCatalog cat = doc.getDocumentCatalog();
cat.setMetadata(metadata);
// do metadata stuff, just removed it for now
InputStream colorProfile = PDFService.class.getResourceAsStream("/pdfa/sRGB Color Space Profile.icm");
PDOutputIntent oi = new PDOutputIntent(doc, colorProfile);
oi.setInfo("sRGB IEC61966-2.1");
oi.setOutputCondition("sRGB IEC61966-2.1");
oi.setOutputConditionIdentifier("sRGB IEC61966-2.1");
oi.setRegistryName("http://www.color.org");
cat.addOutputIntent(oi);
This is the code for RGB, we also add another *.icm color profile for CMYK.
So the color profiles seem to be fine, because dependent on the one we add first, the validation issues are gone.
For me it feels like we are just missing a small thing that both color profiles will be accepted, or could it be that only one color profile can be used for the creation of a PDF/A?
Thanks in advance and kind regards
Only a single output intent is allowed, see here. An alternative is also mentioned there, which would be to use only ICC based colorspaces.
What should be possible (although beyond the scope of the question), would be to assign ICC profiles to /DeviceGray, /DeviceRGB, or /DeviceCMYK, by adding DefaultGray, DefaultRGB, or DefaultCMYK entries the ColorSpaces in the resource dictionary, as explained in section 8.6.5.6 of the PDF specification:
When a device colour space is selected, the ColorSpace subdictionary
of the current resource dictionary (see 7.8.3, "Resource
Dictionaries") is checked for the presence of an entry designating a
corresponding default colour space (DefaultGray, DefaultRGB, or
DefaultCMYK, corresponding to DeviceGray, DeviceRGB, or DeviceCMYK,
respectively). If such an entry is present, its value shall be used as
the colour space for the operation currently being performed.
Be aware that making PDF file PDF/A-1b conformant is often more trickier than just adding output intents - check your file with PDFBox preflight or with the online validator from PDF Tools, there are many possible errors. Which is why there are products from Callas Software or PDF Tools that convert PDF files to PDF/A.
I just finished to setup Blender so it can export to Ogre. When I am exporting I get a bunch of mesh files and a scene file.
I am loading the model that the Ogre SDK provides and it works like so:
mSceneMgr->setAmbientLight(Ogre::ColourValue(0.5f, 0.5f, 0.5f));
// Create an Entity
Ogre::Entity* ogreHead = mSceneMgr->createEntity("Head", "ogrehead.mesh");
// Create a SceneNode and attach the Entity to it
Ogre::SceneNode* headNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("HeadNode");
headNode->attachObject(ogreHead);
// Create a Light and set its position
Ogre::Light* light = mSceneMgr->createLight("MainLight");
light->setPosition(20.0f, 80.0f, 50.0f);
What's happening is that it loads a single mesh file and that's it.
This is the Blender export output:
What do I need to do from here in order to load my model?
It depends a bit on what you want to achieve.
Currently you have created a scene in blender containing multiple parts that together result in your BlackHawk helicopter. If you just need a single object in Ogre, you can combine the elements inside Blender into one object, export that and use the same loading code as before (using the new .mesh file name of course).
If you want the individual parts to stay independent, you will have to load them into Ogre one by one or use one of the many DotScene loaders (e.g. this one or that one or the one that also handles user data) and point it to your "BlackHawk.scene" file (which should reference all helicopter parts).
We can get some information by json.
But how can i get images by the information in json.
e.g. "thumbnail": "medivh/1/1-avatar.jpg"
It does not work when i concat the url behind the host + request.
So, is there some other way to get images?
The url for the static images has the following format:
http:// REGION . battle.net/static-render/ REGION / THUMBNAIL
Example:
For the avatar image
http://eu.battle.net/static-render/eu/alexstrasza/57/51685945-avatar.jpg
The picture you see when you visit your armory profile
http://eu.battle.net/static-render/eu/alexstrasza/57/51685945-profilemain.jpg
Another angle, I don't know where this is used
http://eu.battle.net/static-render/eu/alexstrasza/57/51685945-inset.jpg
As of the latest changes to the static renderer, the following is correct:
http://render-<Region>.worldofwarcraft.com/character/<Thumbnail>
For example:
http://render-us.worldofwarcraft.com/character/kul-tiras/148/130814612-profilemain.jpg