One or more embodiments of the present invention are directed to a display device including a display unit configured to output an image, a brightness converting unit configured to acquire a brightness corrected image by correcting brightness of the image, and a controller configured to detect a face included in the image, to acquire a color corrected image by applying a gain value to a color of the brightness corrected image according to whether the face is detected, and to output the color corrected image or the brightness corrected image through the display unit.

One or more embodiments of the present invention are directed to a display device including a display unit configured to output an image, a brightness converting unit configured to acquire a brightness corrected image by correcting brightness of the image, and a controller configured to detect a face included in the image, to acquire a color corrected image by applying a gain value to a color of the brightness corrected image according to whether the face is detected, and to output the color corrected image or the brightness corrected image through the display unit.

An electronic device and a method for controlling the electronic device are provided. The electronic device includes a storage; a display; a communication interface configured to communicate with an external device to receive, from the external device, a video signal including a plurality of frames at a second transmission speed that is faster than a first transmission speed; and a processor configured to: control the communication interface to receive the plurality of frames transmitted at the second transmission speed and store the plurality of frames in the storage, identify features of a second frame among the plurality of frames to be played back after a first frame among the plurality of frames, and control the display to display the first frame based on the identified features of the second frame.

An image capture device may detect presence of an on-housing hand within a periphery of a field of view of an optical element during capture of visual content through the optical element. The image capture device may generate an alarm to indicate the presence of the on-housing hand within the periphery of the field of view of the optical element.

The invention provides an image color enhancement system, method, storage medium and endoscope. Based on that the human skin color and the basic tone of endoscopic image are similar, utilizing a standard data set of Macbeth color card, a color correction matrix for skin color enhancement is generated, which is used by an endoscope for real time image capture, resulting in a vivid expression of the basic tone of an endoscopic image without introducing artifacts in other tonal image parts.

Methods and apparatus for providing adaptive lens shading correction in at least a portion of a shaded image frame perform luminance lens shading correction for a portion of the shaded image frame and detect a color flat area in the shaded image. The methods and apparatus generate a frequency-based color shading profile that includes color shading parameters including an amplitude parameter and phase parameter corresponding to hue distributions from experimental shading data and generate an unshaded image by performing color shading correction on the detected color flat areas of the shaded image frame using the color shading parameters.

Methods and apparatus for providing adaptive lens shading correction in at least a portion of a shaded image frame perform luminance lens shading correction for a portion of the shaded image frame and detect a color flat area in the shaded image. The methods and apparatus generate a frequency-based color shading profile that includes color shading parameters including an amplitude parameter and phase parameter corresponding to hue distributions from experimental shading data and generate an unshaded image by performing color shading correction on the detected color flat areas of the shaded image frame using the color shading parameters.

A beauty processing method includes obtaining tracking information of a target object in a to-be-processed image, the tracking information including feature information of the target object, and performing beauty processing on the target object according to the feature information of the target object.

In a method to improve backwards compatibility when decoding high-dynamic range images coded in a wide color gamut (WCG) space which may not be compatible with legacy color spaces, hue and/or saturation values of images in an image database are computed for both a legacy color space (say, YCbCr-gamma) and a preferred WCG color space (say, IPT-PQ). Based on a cost function, a reshaped color space is computed so that the distance between the hue values in the legacy color space and rotated hue values in the preferred color space is minimized HDR images are coded in the reshaped color space. Legacy devices can still decode standard dynamic range images assuming they are coded in the legacy color space, while updated devices can use color reshaping information to decode HDR images in the preferred color space at full dynamic range.

In a method to improve backwards compatibility when decoding high-dynamic range images coded in a wide color gamut (WCG) space which may not be compatible with legacy color spaces, hue and/or saturation values of images in an image database are computed for both a legacy color space (say, YCbCr-gamma) and a preferred WCG color space (say, IPT-PQ). Based on a cost function, a reshaped color space is computed so that the distance between the hue values in the legacy color space and rotated hue values in the preferred color space is minimized. HDR images are coded in the reshaped color space. Legacy devices can still decode standard dynamic range images assuming they are coded in the legacy color space, while updated devices can use color reshaping information to decode HDR images in the preferred color space at full dynamic range.