System for photograph enhancement by user controlled local image enhancement

Patent metadata

Field	Value
Publication number	US-8995783-B2
Application number	US-201213622954-A
Country	US
Kind code	B2
Filing date	Sep 19, 2012
Priority date	Sep 19, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

In photography, High Dynamic Range (HDR) technology typically consists of (1) acquiring a wide dynamic range image and (2) adapting the wide dynamic range image to fit to the display range of the device. The first part can be achieved by using a special sensor or by combining two or more images with same or different exposures, and is optional. The second part, contrast adaptation, locally adapts the tone mapping function thus effectively re-using the available range. Described is a system and method that enables a user to create a new image by selectively combining contrast adapted and non-contrast adapted versions of the same image. The new image can retain the natural quality of the well illuminated areas and enhance salient features as selected by the user.

First claim

What is claimed is:

1. A method of generating a hybrid image from a non-contrast adapted and a contrast adapted version of the same image, wherein the method comprises:
providing a non-contrast adapted image on a screen;
sensing selection of an area of the non-contrast adapted image;
comparing the area of the non-contrast adapted image to the same area of the contrast adapted version of the same image; and
creating the hybrid image by altering the area of the non-contrast ad…

Assignees

• Verrall Stephen Michael
• Atanassov Kalin Mitkov
• Giura Adrian
• Qualcomm Inc

Inventors

• Verrall Stephen Michael
• Atanassov Kalin Mitkov
• Giura Adrian

Classifications

• H04N23/62 Primary

  Electricity · mapped topic

• H04N23/741

  Electricity · mapped topic

• H04N5/2355

  Electricity · mapped topic

• H04N5/23216 Primary

  Electricity · mapped topic