ProjectNaptha: Image Extraction Text Browser Plugin Tool is a browser plug-in that can support other with text from image files and can copy and select the text from the image. Let you get text from the picture is no longer a difficult problem, for the success rate of identification, you need to test it yourself to see the effect.

We know that the plain text in the article can be copied The text in the picture, especially in posters, comics, scanned documents, pictures or screenshots, cannot be extracted, at least in my previous knowledge there is no tool to extract the text from the pictures, before they are typed in.

This Chrome add-on called Project Naptha, after installation, can turn the text in web images into pure text content that can be copied, selected or translated. The built-in function of instant translation and selection of different languages for recognition.

Project Naptha text recognition supports English, Internet languages, Russian, German, Spanish, Simplified Chinese, Traditional Chinese, French and Japanese, and can also be translated into other languages, but in English the recognition is better and more accurate, while in Chinese there may be recognition However, in English, the recognition is better and more accurate, while in Chinese, there may be errors (Chinese characters are still more complicated). At present, it can only be used on Google Chrome, and additional features will be released for Firefox in the future.

Project Naptha instructions:

Users can download and install extensions directly from the Project Naptha website, or link to the Chrome Online App Store, which is actually the same. After installing and rearranging the page, try moving the mouse cursor over the text above the image and amazingly you will find that the text becomes selectable!

The same way you would normally select plain text, use the left mouse button to highlight the text, click the right mouse button and select Copy Text to copy it, or do a "Select All" or "Open Image in New Page".

If the text you want to select is not English, then right click after selection, find other languages in Language to switch, you can use other recognition engines to identify, for example, traditional Chinese choose Chinese Traditional, but the accuracy rate However, the accuracy rate is not very good, so you still need to pick the wrong words yourself.

In fact, it is announcing that Project Naptha is using Ocrad engine recognition technology, which does not affect the operation. Disclaimer to turn it off, then the text will not be displayed

InDooRatlas:Geomagnetic Field InDooRatlas is a moving map application that uses geomagnetism for indoor navigation by identifying the unique geomagnetism of each location on Earth for positioning, and it can even work in areas where there is no wireless signal.

InDooRatlas is a project of the University of Oulu, Finland. InDooRatlas is a mobile mapping application developed by a research team at the University of Oulu in Finland that can help users navigate indoors by identifying the geomagnetism of different locations. indoorAtlas works by identifying the unique geomagnetism of each location on Earth for positioning, and it can even work in areas where there is no wireless signal.

The reinforced concrete structures of modern buildings can cause localized disturbances to the geomagnetic field, and the compass may be affected by this. In principle, a non-uniform magnetic field environment will produce different magnetic field observations depending on its path. Every building, every floor, and even every corner of the earth has a different geomagnetic field. Because of this, they can be located by detecting their geomagnetic fields.

The research team has completed testing in a 4,593-foot-deep (1,380 meters) cave, and the application is working well. And the application runs in the building in the precise range of 0.1 m-2 m; users do not need to install other supporting software and hardware can be used, but also with other map applications to obtain more accurate location information.

Currently, IndoorAtlas is available for Android and iPhone, and has an open API; it is expected to be available on other platforms soon. However, the team said IndoorAtlas is just getting started, and developers need to make more improvements.