Picture display method and apparatus

• US 9,792,670 B2
• Filed: 04/11/2017
• Issued: 10/17/2017
• Est. Priority Date: 03/23/2015
• Status: Active Grant

• Current Assignee: Hisense International Company Limited (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.), Hisense USA Corporation (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.), Qingdao Hisense Electronics Co., Ltd. (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.)
• Original Assignee: Hisense International Company Limited (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.), Hisense USA Corporation (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.), Qingdao Hisense Electronics Co., Ltd. (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.)
• Inventors: Feng, Weina, Zhao, Huanjie, Wang, Xianjian
• Primary Examiner(s): Gilliard, Delomia L
• Application Number:
  US15/484,761
• Publication Number:
  US 20170221181A1
• Time in Patent Office: 189 Days
• Field of Search: None
• CPC Class Codes: G06F 16/51 Indexing; Data structures therefor; Storage structures
• CPC Class Codes: G06F 16/5866 using information manually generated, e.g. tags, keywords, comments, manually generated location and time information
• CPC Class Codes: G06T 3/4092 Image resolution transcoding, e.g. by using client-server architectures
• CPC Class Codes: G06T 3/60 Rotation of whole images or parts thereof
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/227 Resolution modifying circuits, e.g. variable screen formats, resolution change between memory contents and display screen

Abstract

The present disclosure provides a picture display method and apparatus that relate to the field of image processing and are increase flexibility of picture display and reducing a memory occupation rate of a terminal on the premise of not modifying an attribute of an original picture. The method and apparatus include receiving an instruction for displaying a picture; obtaining, according to an identifier of a to-be-displayed picture included in the instruction, an original bitmap of the to-be-displayed picture and searching, a database of a current device for a pre-stored first rotation angle corresponding to the to-be-displayed picture; adjusting, according to a resolution of a current screen and/or a current window size, a display size of the original bitmap of the to-be-displayed picture, so as to obtain a compressed bitmap of the original bitmap; and displaying, according to the first rotation angle, a compressed bitmap of the original bitmap.

Claims

1. A method for displaying a target picture, the method comprising:

loading, by an electronic device, an original bitmap of a target picture;

searching, by the electronic device, a database stored in the electronic device for a first rotation angle corresponding to the target picture, wherein the database is separate from the target picture; and

displaying, by the electronic device, the original bitmap according to the first rotation angle.

2. The method according to claim 1, wherein the displaying, by the electronic device, the original bitmap according to the first rotation angle comprises:

before searching the database for the first rotation angle, adjusting, by the electronic device, a display size of the original bitmap of the target picture according to a resolution of a screen of the electronic device or a resolution of a display window on the screen of the electronic device, to obtain a compressed bitmap; and

displaying, by the electronic device, the compressed bitmap according to the first rotation angle.

3. The method according to claim 2, wherein the displaying, by the electronic device, the compressed bitmap according to the first rotation angle comprises:

rotating, by the electronic device, the compressed bitmap according to the first rotation angle, to obtain a rotated compressed bitmap;

adjusting, by the electronic device, a display size of the rotated compressed bitmap according to the resolution of the screen of the electronic device or the resolution of the display window on the screen of the electronic device, to obtain an adaptive window bitmap; and

displaying, by the electronic device, the adaptive window bitmap.

4. The method according to claim 1, wherein the displaying, by the electronic device, the original bitmap according to the first rotation angle comprises:

after searching the database for the first rotation angle, adjusting, by the electronic device, a display size of the original bitmap of the target picture according to a resolution of a screen of the electronic device or a resolution of a display window on the screen of the electronic device, to obtain a compressed bitmap; and

displaying, by the electronic device, the compressed bitmap according to the first rotation angle.

5. The method according to claim 4, wherein the displaying, by the electronic device, the compressed bitmap according to the first rotation angle comprises:

rotating, by the electronic device, the compressed bitmap according to the first rotation angle, to obtain a rotated compressed bitmap;

adjusting, by the electronic device, a display size of the rotated compressed bitmap according to the resolution of the screen of the electronic device or the resolution of the display window on the screen of the electronic device, to obtain an adaptive window bitmap; and

displaying, by the electronic device, the adaptive window bitmap.

6. The method according to claim 1, wherein the searching, by the electronic device, the database stored in the electronic device for the first rotation angle corresponding to the target picture further comprises:

when the first rotation angle corresponding to the target picture is not found in the database stored in the electronic device, setting the first rotation angle to 0°

.

7. The method according to claim 1, the method further comprising:

receiving, by the electronic device, a rotation instruction to adjust the target picture with a second rotation angle;

determining, by the electronic device, a summation of the first rotation angle and the second rotation angle;

setting, by the electronic device, the first rotation angle to the summation; and

updating, by the electronic device, the database stored in the electronic device with the first rotation angle corresponding to the target picture.

8. The method according to claim 1, further comprising:

generating, by the electronic device, a thumbnail of the target picture according to the first rotation angle and based on the original bitmap and a preset scaling ratio; and

saving, by the electronic device, the thumbnail in a pre-established picture cache of the electronic device.

9. The method according to claim 8, further comprising:

loading, by the electronic device, the thumbnail of the target picture from the pre-established picture cache; and

displaying, by the electronic device, the thumbnail of the target picture.

10. An electronic apparatus for displaying a target picture, comprising:

a memory storing a set of instructions; and

a processor in communication with the memory,

wherein, when the processor executes the set of instructions, the processor is configured to cause the electronic apparatus to;

load an original bitmap of a target picture;

search a database stored in the electronic apparatus for a first rotation angle corresponding to the target picture, wherein the database is separate from the target picture; and

display the original bitmap according to the first rotation angle.

11. The electronic apparatus according to claim 10, wherein the processor, when executing the set of instructions to cause the electronic apparatus to display the original bitmap according to the first rotation angle, is configured to cause the electronic apparatus to:

before the processor is configured to cause the electronic apparatus to search the database for the first rotation angle, adjust, according to a resolution of a screen of the electronic apparatus or a resolution of a display window on the screen of the electronic apparatus, a display size of the original bitmap of the target picture to obtain a compressed bitmap; and

display the compressed bitmap according to the first rotation angle.

12. The electronic apparatus according to claim 11, wherein the processor, when executing the set of instructions to cause the electronic apparatus to display the compressed bitmap according to the first rotation angle, is configured to cause the electronic apparatus to:

rotate the compressed bitmap according to the first rotation angle, to obtain a rotated compressed bitmap;

adjust, according to the resolution of the screen of the electronic apparatus or the resolution of the display window on the screen of the electronic apparatus, a display size of the rotated compressed bitmap, to obtain an adaptive window bitmap; and

display the adaptive window bitmap.

13. The electronic apparatus according to claim 10, wherein the processor, when executing the set of instructions to cause the electronic apparatus to display the original bitmap according to the first rotation angle, is configured to cause the electronic apparatus to:

after the processor is configured to cause the electronic apparatus to search the database for the first rotation angle, adjust, according to a resolution of a screen of the electronic apparatus or a resolution of a display window on the screen of the electronic apparatus, a display size of the original bitmap of the target picture to obtain a compressed bitmap; and

display the compressed bitmap according to the first rotation angle.

14. The electronic apparatus according to claim 13, wherein the processor, when executing the set of instructions to cause the electronic apparatus to display the compressed bitmap according to the first rotation angle, is configured to cause the electronic apparatus to:

rotate the compressed bitmap according to the first rotation angle, to obtain a rotated compressed bitmap;

adjust, according to the resolution of the screen of the electronic apparatus or the resolution of the display window on the screen of the electronic apparatus, a display size of the rotated compressed bitmap, to obtain an adaptive window bitmap; and

display the adaptive window bitmap.

15. The electronic apparatus according to claim 10, wherein the processor, when executing the set of instructions to cause the electronic apparatus to search the database stored in the electronic apparatus for the first rotation angle corresponding to the target picture, is further configured to cause the electronic apparatus to:

when the first rotation angle corresponding to the target picture is not found in the database stored in the electronic apparatus, set the first rotation angle to 0°

.

16. The electronic apparatus according to claim 10, wherein the processor, when executing the set of instructions, is further configured to cause the electronic apparatus to:

receive a rotation instruction to adjust the target picture with a second rotation angle;

determine a summation of the first rotation angle and the second rotation angle;

set the first rotation angle to the summation; and

update the database stored in the electronic apparatus with the first rotation angle corresponding to the target picture.

17. The electronic apparatus according to claim 10, wherein the processor, when executing the set of instructions, is further configured to cause the electronic apparatus to:

generate a thumbnail of the target picture according to the first rotation angle and based on the original bitmap and a preset scaling ratio; and

save the thumbnail in a pre-established picture cache of the electronic apparatus.

18. The electronic apparatus according to claim 17, wherein the processor, when executing the set of instructions, is further configured to cause the electronic apparatus to:

load the thumbnail of the target picture from the pre-established picture cache; and

display the thumbnail of the target picture.

19. A non-transitory processor-readable storage medium having a set of instructions stored thereon, wherein the set of instructions, when executed by a processor of an electronic device, instructs the processor to cause the electronic device to perform actions comprising:

loading an original bitmap of a target picture;

searching a database stored in the electronic device for a first rotation angle corresponding to the target picture, wherein the database is separate from the target picture; and

displaying the original bitmap according to the first rotation angle.

20. The non-transitory processor-readable storage medium according to claim 19, wherein the displaying the original bitmap according to the first rotation angle comprises:

before the searching the database for the first rotation angle, adjusting a display size of the original bitmap of the target picture according to a resolution of a screen of the electronic device or a resolution of a display window on the screen of the electronic device, to obtain a compressed bitmap; and

displaying the compressed bitmap according to the first rotation angle.

21. The non-transitory processor-readable storage medium according to claim 20, wherein the displaying the compressed bitmap according to the first rotation angle comprises:

rotating the compressed bitmap according to the first rotation angle, to obtain a rotated compressed bitmap;

adjusting a display size of the rotated compressed bitmap according the resolution of the screen of the electronic device or the resolution of the display window on the screen of the electronic device, to obtain an adaptive window bitmap; and

displaying the adaptive window bitmap.

22. The non-transitory processor-readable storage medium according to claim 19, wherein the displaying the original bitmap according to the first rotation angle comprises:

after the searching the database for the first rotation angle, adjusting a display size of the original bitmap of the target picture according to a resolution of a screen of the electronic device or a resolution of a display window on the screen of the electronic device, to obtain a compressed bitmap; and

displaying the compressed bitmap according to the first rotation angle.

23. The non-transitory processor-readable storage medium according to claim 22, wherein the displaying the compressed bitmap according to the first rotation angle comprises:

rotating the compressed bitmap according to the first rotation angle, to obtain a rotated compressed bitmap;

adjusting a display size of the rotated compressed bitmap according the resolution of the screen of the electronic device or the resolution of the display window on the screen of the electronic device, to obtain an adaptive window bitmap; and

displaying the adaptive window bitmap.

24. The non-transitory processor-readable storage medium according to claim 19, wherein the searching the database stored in the electronic device for the first rotation angle corresponding to the target picture further comprises:

when the first rotation angle corresponding to the target picture is not found in the database stored in the electronic device, setting the first rotation angle to 0°

.

25. The non-transitory processor-readable storage medium according to claim 19, wherein the set of instructions, when executed by the processor of the electronic device, further instructs the processor to cause the electronic device to perform actions comprising:

receiving a rotation instruction to adjust the target picture with a second rotation angle;

determining a summation of the first rotation angle and the second rotation angle;

setting the first rotation angle to the summation; and

updating the database stored in the electronic device with the first rotation angle corresponding to the target picture.

26. The non-transitory processor-readable storage medium according to claim 19, wherein the set of instructions, when executed by the processor of the electronic device, further instructs the processor to cause the electronic device to perform actions comprising:

generating a thumbnail of the target picture according to the first rotation angle and based on the original bitmap and a preset scaling ratio; and

saving the thumbnail in a pre-established picture cache of the electronic device.

27. The non-transitory processor-readable storage medium according to claim 26, wherein the set of instructions, when executed by the processor of the electronic device, further instructs the processor to cause the electronic device to perform actions comprising:

loading the thumbnail of the target picture from the pre-established picture cache; and

displaying the thumbnail of the target picture.