A new article from Adobe Polder Marc Levoy and senior scientist Florian Kayns is discussing their last project, which is embodied in the new IPhone application. In addition to the fact that the inventors are hoping more “natural”, the project is aimed at the maximum possible image quality on a mobile device.
in the new research article explaining the project, the couple describes in detail their approach to achieving more authentic photographs. The application underestimates more than most applications for the camera, but also reflects, aligns and unites “more frames when creating each photo and MDash; Up to 32 frames “for one exposition.
“This means that our photographs have fewer exploded moments and less noise in the shadows,” they write to Left and Kines; But also note that photography with the application “may require a little more patience after pressing the shutter button than you are used to … But in a few seconds you will be rewarded with the best image.”
This approach leads to less “smoothing” than in most smartphone cameras that preserve natural textures better. It also avoids what can be called “global tone mapping”, where usually the brightest point on the smartphone is used to install the exposure for the entire photo.
This often leads to the fact that very bright objects appear correctly balanced, at that time, as something darker than the brightest point, unprofitable. This makes it difficult to edit the image later to correct the distrustful parts, especially if the format of the unprocessed image was not used.
Further problem is the development of Zooming. Smartphones do not have enough optical scaling lenses, therefore, when users “scale” on the subject, the camera now reads only the central part of the sensor and MDash; Further decrease in the quality of the image.
The Indigo application overcomes this problem using a technique called “multi-quality super-resolution”, quickly removing several images of the scene in different resolutions and levels of increase to reduce noise.
an example of correction of super-resolution of a distant subject. Image loan: adobe
“Then we combine these images to create one photo with more details than present in the same image,” the authors say. “And since we have captured different points of view, additional details in our photographs in super resolution are real, and not [computingly] hallucinated.”
The Indigo application also offers wealthy controls to photographers of smartphones, designed specifically for a photograph of a smartphone. “We offer obvious control elements over the focus, shutter speed, ISO, exposure compensation and white and MDash balance; The latter with separate control over the temperature and shade, like Lightroom, ”the authors say.
“, but since each photograph is the result of personnel association, Indigo also offers control over the number of personnel in the explosion,” the developers say. “This gives photographers the opportunity to exchange the total time of capture against the noise level.”
One additional future function The applications are offering a smartphone for users, the Indigo developers want to make the latest type of photo in Viewfinder & Mdash; The image, reducing the brightness of the preliminary, and the time of reducing the time of exposure
Similarly, some extended photographs of the & mdash; such as the removal of lighting from the illuminated object, which is under glass or plastic, for example, & mdash, it would be possible “in the chamber” using indigo. The Project Indigo is considered as a set of technologies that are currently used in one eminent application, as a platform of methods ”, which can ultimately be used in the flagship products of Adobe, especially Lightroom.”
