US-12620335-B2 - Display apparatus correcting image in consideration of user's perceptual distortion

US12620335B2US 12620335 B2US12620335 B2US 12620335B2US-12620335-B2

Abstract

An electronic apparatus includes a memory storing instructions and a processor configured to execute the instructions to identify a display environment of an image, correct characteristics of a test image provided to identify a user's visual perception for characteristics of the image to correspond to the identified display environment, display the test image having the corrected characteristics on a display, and correct the characteristics of the image based on the user's adjustment input for the characteristics of the displayed test image.

Inventors

Jonghwan KIM
Guiwon SEO
Younghoon JEONG
Seungho Park
Youngsu Moon

Assignees

SAMSUNG ELECTRONICS CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20230303
Priority Date: 20200903

Claims (14)

1 . An electronic apparatus comprising: a display; an interface configured to receive an image signal; a memory storing instructions; and a processor configured to execute the instructions to: identify a display environment of an image, wherein the display environment includes display brightness of the display or ambient brightness of a surrounding environment of the electronic apparatus, correct characteristics of a test image provided to identify a visual perception of a user for characteristics of the image to correspond to the identified display environment, wherein the processor is configured to correct the characteristics of the test image to correspond to the display brightness or the ambient brightness, display the test image having the corrected characteristics on the display, receive an input of the user for adjusting the characteristics of the displayed test image, and correct the characteristics of the image based on the received input of the user for adjusting the characteristics of the displayed test image, wherein the processor is further configured to execute the instructions to: identify a first correction value in proportion to the display brightness or the ambient brightness, and reflect the first correction value in a value of the characteristics of the test image, correct the characteristics of the image by reflecting the first correction value and a second correction value corresponding to the input of the user for adjusting the characteristics of the displayed test image in color information of the image signal received through the interface, and reflect a third correction value which is in inverse proportion to the first correction value in brightness information of the image signal received through the interface.
2 . The electronic apparatus of claim 1 , wherein the processor is further configured to execute the instructions to correct saturation for each color of the test image.
3 . The electronic apparatus of claim 1 , wherein the processor is further configured to execute the instructions to determine the first correction value based on a correction value corresponding to the display brightness and a correction value corresponding to the ambient brightness.
4 . The electronic apparatus of claim 3 , wherein the processor is further configured to execute the instructions to determine the first correction value based on a first weight given to the correction value corresponding to the display brightness and a second weight given to the correction value corresponding to the ambient brightness, the first weight being different from the second weight.
5 . The electronic apparatus of claim 1 , wherein the processor is further configured to execute the instructions to identify a correction value based on the input of the user for adjusting the characteristics of the displayed test image and correct the characteristics of the image by reflecting the correction value in the color information of the image signal received through the interface.
6 . The electronic apparatus of claim 5 , wherein the processor is further configured to execute the instructions to measure a user score for a color based on whether an area different in saturation is correctly selected by the input of the user for adjusting the characteristics of the displayed test image, and derive the correction value based on the measured score.
7 . The electronic apparatus of claim 1 , wherein the memory is configured to store a correction value corresponding to the user, and wherein the processor is further configured to acquire the correction value stored in the memory and adjust the correction value based on a difference between the display environment at a point in time in which the correction value is derived and the display environment at a current point in time.
8 . A method of controlling an electronic apparatus, the method comprising: identifying a display environment of an image, wherein the display environment includes display brightness of a display of the electronic apparatus or ambient brightness of a surrounding environment of the electronic apparatus; correcting characteristics of a test image provided to identify a visual perception of a user for characteristics of the image to correspond to the identified display environment, wherein the correcting of the characteristics of the test image comprises correcting the characteristics of the test image to correspond to the display brightness or the ambient brightness; displaying the test image having the corrected characteristics on the display; receiving, through a touch screen of the display, an input of the user for adjusting the characteristics of the displayed test image, the input for adjusting the corrected characteristics of the displayed test image being an adjustment input of the user on the touch screen; correcting the characteristics of the image based on the received input of the user for adjusting the characteristics of the displayed test image; and receiving an image signal through an interface of the electronic apparatus, wherein the correcting the characteristics of the test image comprises: identifying a first correction value in proportion to the display brightness or the ambient brightness, and reflecting the first correction value in a value of the characteristics of the test image, wherein the correcting the characteristics of the image based on the received input of the user comprises: correcting the characteristics of the image by reflecting the first correction value and a second correction value corresponding to the input of the user for adjusting the characteristics of the displayed test image in color information of the image signal received through the interface, and wherein the method further comprises: reflecting a third correction value which is in inverse proportion to the first correction value in brightness information of the image signal received through the interface.
9 . The method of claim 8 , wherein the correcting the characteristics of the test image comprises correcting saturation for each color of the test image.
10 . The method of claim 8 , wherein the identifying the first correction value comprises determining the first correction value based on a correction value corresponding to the display brightness and a correction value corresponding to the ambient brightness.
11 . The method of claim 10 , wherein the determining the first correction value comprises determining the first correction value based on a first weight given to the correction value corresponding to the display brightness and a second weight given to the correction value corresponding to the ambient brightness, the first weight being different from the second weight.
12 . The method of claim 8 , wherein the correcting the characteristics of the image based on the input of the user for adjusting the characteristics of the displayed test image comprises: obtaining the color information of the image signal; identifying the second correction value based on the input of the user for adjusting the characteristics of the displayed test image; and adjusting the color information of the image signal based on the first correction value and the second correction value.
13 . The method of claim 8 , wherein the correcting the characteristics of the image based on the input of the user for adjusting the characteristics of the displayed test image comprises: identifying the second correction value based on the input of the user for adjusting the characteristics of the displayed test image.
14 . A non-transitory computer-readable recording medium having recorded thereon a program that is executable by a computer to perform the method of claim 8 .

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is a bypass continuation application of International Application No. PCT/KR2021/011642, filed on Aug. 31, 2021, which is based on and claims priority to Korean Patent Applications No. 10-2020-0112192 filed on Sep. 3, 2020 in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entireties. BACKGROUND 1. Field The disclosure relates to an electronic apparatus for processing an image signal to display an image based on the image signal and a control method thereof, and more particularly to an electronic apparatus provided to correct an image in consideration of a user's perceptual distortion and a method of controlling the same. 2. Description of Related Art To compute and process predetermined information in accordance with certain processes, an electronic apparatus basically includes a central processing unit (CPU), a chipset, a memory, and the like electronic components for the computation. Such an electronic apparatus may be variously classified in accordance with what information will be processed and what it is used for. For example, the electronic apparatus includes an information processing apparatus such as a personal computer (PC), a server or the like for processing general information; an image processing apparatus for processing image data; an audio apparatus for audio process; home appliances for miscellaneous household chores; etc. The image processing apparatus may be classified into an apparatus with a display panel for displaying an image (i.e., a display apparatus), and an apparatus with no display panel. The display apparatus processes an image signal from an image source and displays the image signal on its own display panel, and the image processing apparatus with no display panel outputs a processed image signal to a display apparatus so that an image can be displayed on the display apparatus. Such a displayed image may have factors that decrease a user's correct perception. For example, there is a color washout phenomenon that the higher the brightness a user visually perceives, the lower the saturation of an image the user perceives. Further, users have different unique abilities to perceive an image. For this reason, even when users view an image displayed on the same display apparatus and under the same surrounding environment, the color of the image may be perceived differently by the users. In other words, due to various factors involved in a user's visual perception of an image, the image perceived by the user may be distorted. Accordingly, an image processing apparatus or a display apparatus may be required to reduce such a distortion in perceiving an image, and ensure that the image of which the characteristics (e.g., color, etc.) are intended by an image content provider is conveyed to a user as it is as possible. SUMMARY According to an aspect of the disclosure, an electronic apparatus includes a memory storing instructions and a processor configured to execute the instructions to identify a display environment of an image, correct characteristics of a test image provided to identify a user's visual perception for characteristics of the image to correspond to the identified display environment, display the test image having the corrected characteristics on a display, and correct the characteristics of the image based on the user's adjustment input for the characteristics of the displayed test image. The display environment may include at least one of display brightness of the display or ambient brightness, and the processor may be further configured to execute the instructions to correct the characteristics of the test image based on at least one of the display brightness or the ambient brightness. The processor may be further configured to execute the instructions to correct saturation for each color of the test image. The processor may be further configured to execute the instructions to identify a first correction value in proportion to at least one of the display brightness or the ambient brightness, and reflect the first correction value in a value of the characteristics of the test image. The electronic apparatus may further include an interface configured to receive an image signal, in which the processor may be further configured to execute the instructions to correct the characteristics of the image by reflecting the first correction value and a second correction value corresponding to the adjustment input in color information of the image signal received through the interface. The processor may be further configured to execute the instructions to reflect a third correction value which is in inverse proportion to the first correction value, in brightness information of the image signal received through the interface. The processor may be further configured to execute the instructions to calculate the first correction value based on a correction value cor