TWI452513B - Electronic apparatus with an image adjusting function and method for the same - Google Patents

Description

Electronic device with picture adjustment function and picture adjustment method

The present invention relates to an electronic device having a picture adjustment function and a method of adjusting a picture displayed on the electronic device.

Generally, since the display ratio of the display screen of the display device is different from the display ratio of the picture, the picture cannot be displayed full screen when the picture is displayed, that is, the display screen cannot be completely covered by the picture, for example, the aspect ratio of the display screen is larger than the picture. The aspect ratio, when the picture is centered, there will be areas on the upper and lower sides of the picture that cannot be covered by the picture. When the aspect ratio of the display is smaller than the aspect ratio of the picture, when the picture is centered, the left and right sides of the picture will appear. An area that cannot be covered by a picture, which not only affects the display effect, but also makes the display space of the display screen not fully utilized.

Chinese patent application No. 200510135789.2, published on July 4, 2007 in the Chinese Mainland Intellectual Property Office, discloses a picture adjustment method, which sets a scale factor comparison table, which records pictures with different aspect ratios. The zoom factor between the standard picture (the aspect ratio is 4/3, which is consistent with the display ratio of the display device), that is, when the aspect ratio of the picture to be displayed does not match the aspect ratio of the standard picture, the picture to be displayed is converted into The scaling factor of the standard picture, after obtaining the aspect ratio of the picture to be displayed, obtaining the scaling factor from the scaling factor comparison table, and then converting the image into a standard by an aspect ratio converter according to the obtained scaling factor image And then the standard image is displayed by a display device.

Although the method can display the picture in full screen on the display device, the picture is distorted by non-proportional scaling of the picture, which affects the display effect.

In view of the above, it is necessary to provide an electronic device having a picture adjustment function and a method for adjusting a picture displayed on the electronic device, so that the picture can be displayed on the full screen while the picture is not distorted.

The electronic device with the image adjustment function includes a picture acquisition module for acquiring a picture to be displayed from a storage device, and a display mode determining module for acquiring an aspect ratio of the picture to be displayed and a display unit. Display the aspect ratio of the screen, and determine whether the aspect ratio of the picture is consistent with the aspect ratio of the display screen; a picture adjustment module performs the picture to be displayed when the aspect ratio of the picture is inconsistent with the aspect ratio of the display screen When adjusting or adjusting, first determine whether the aspect ratio of the display screen is larger than the aspect ratio of the picture; when the aspect ratio of the display screen is larger than the aspect ratio of the picture, the picture adjustment module enlarges/reduces the picture to the length of the picture equal to Display the length of the screen, and cut off the a% and (1-a%) of the enlarged image from the long side of the picture and the bottom of the picture, respectively; the aspect ratio of the display screen When the aspect ratio of the picture is smaller than the aspect ratio of the picture, the picture adjustment module enlarges/reduces the picture to the width of the picture equal to the width of the display screen, and cuts off the length of the enlarged picture from the wide side and the right side of the left side of the picture respectively. A picture of a'% and (1-a'%) of the portion of the screen length; a picture display module for displaying the captured picture on the display unit in full screen.

The method for adjusting a picture displayed on the electronic device includes: acquiring a picture to be displayed; obtaining an aspect ratio of the picture to be displayed and an aspect ratio of the display screen of the display unit, and determining the aspect ratio and the display of the picture Whether the aspect ratio of the curtain is consistent; in the picture When the aspect ratio and the aspect ratio of the display screen are inconsistent, the picture to be displayed is adjusted. When adjusting, it is first determined whether the aspect ratio of the display screen is larger than the aspect ratio of the picture; the aspect ratio of the display screen is larger than the aspect ratio of the picture. The method includes: enlarging/reducing the picture to the length of the picture is equal to the length of the display screen; respectively, starting from the long side of the picture and the bottom of the picture, the width of the enlarged picture is more than a% of the width of the display screen and (1-a %); when the aspect ratio of the display is smaller than the aspect ratio of the image, including: enlarging/reducing the image to the width of the image equal to the width of the display, and respectively taking the enlargement from the wide side and the right side of the left side of the picture. The picture after the length exceeds the a'% and (1-a'%) pictures of the part of the display screen; after the picture is captured, the picture after the interception is displayed on the full screen.

Compared with the prior art, the present invention can intercept a part of the picture when the aspect ratio of the display screen is inconsistent with the aspect ratio of the picture, so that the picture is displayed on the display screen at the same time, so that the picture is not distorted, thereby not affecting Enjoy the effect.

1‧‧‧Electronic device

2‧‧‧External storage devices

11‧‧‧ storage unit

12‧‧‧Display unit

13‧‧‧Processing unit

14‧‧‧ interface

131‧‧‧Image acquisition module

132‧‧‧Display mode determination module

133‧‧‧ Picture Adjustment Module

134‧‧‧ Picture display module

1 is a block diagram of an electronic device having a picture adjustment function; FIG. 2-6 is a schematic diagram of a picture adjustment process when an aspect ratio of the display screen is larger than a picture aspect ratio; FIG. 7-11 is a display screen having an aspect ratio smaller than a picture. A schematic diagram of a picture adjustment process for an aspect ratio; and FIG. 12 is a flow chart of a method for adjusting a picture displayed on an electronic device.

Please refer to FIG. 1 , a block diagram of an electronic device with picture adjustment function. The electronic device 1 can be connected to the external storage device 2 through the interface 14, thereby acquiring a picture in the external storage device 2 for display. The interface 14 can be a universal serial interface (USB interface), 1394 interface and so on. The external storage device 2 can be a storage device such as a camera, a mobile phone, a USB flash drive, or an SD card.

The electronic device further includes a storage unit 11, a display unit 12, and a processing unit 13. The storage unit 11 stores a picture to be displayed, and the display unit 12 is configured to display a picture. The processing unit 13 includes a picture acquisition module 131, a display mode determination module 132, a picture adjustment module 133, and a picture display module 134.

The picture acquisition module 131 is configured to acquire a picture to be displayed from the external storage device 2 or the storage unit 11. The display mode determining module 132 is configured to obtain an aspect ratio of the picture to be displayed and an aspect ratio of the display screen of the display unit 14, and determine whether the aspect ratio of the displayed picture is consistent with the aspect ratio of the display screen, when the picture is displayed. When the aspect ratio of the display screen is consistent with the aspect ratio of the display screen, the picture display module 134 displays the picture on the full screen. When the aspect ratio of the displayed picture is different from the aspect ratio of the display screen, the picture is first adjusted by the picture. After the group 133 adjusts the picture, it is displayed by the picture display module 134.

When the picture adjustment module 133 adjusts the picture, it is first determined whether the aspect ratio of the display screen of the display unit 14 is greater than the aspect ratio of the picture. When the aspect ratio of the display is larger than the aspect ratio of the picture, please refer to Figure 2-6 for the adjustment process. First, enlarge/reduce the picture to the width of the picture and the width of the display screen. As shown in Figure 2, the length and width of the picture are M and N, respectively. Figure 3 shows the display screen. The length and width are L and N, respectively. Where M<L. The picture adjustment module 133 enlarges the picture length/picture length, that is, L/M times, the length of the enlarged picture is L, the width is L*N/M, and the width of the enlarged picture exceeds the display. The portion of the curtain width (hereinafter referred to as the width excess portion) A = L * N / MN, as shown in FIG.

As shown in FIG. 5, the picture adjustment module 133 cuts a picture of a% of the width beyond the width of the enlarged picture from the long side of the picture, that is, A*a% of the picture, where a is a pre- The value can be set by the manufacturer or by the user according to the actual situation. Setting, in the setting, it is appropriate that the main part of the picture is not intercepted, such as the head of the character. In the present embodiment, a=20 is preferred. After the upper image is intercepted, the picture adjustment module 133 intercepts a 1-a% wide picture beyond the width from the long side of the picture along the wide side of the picture. The captured picture is displayed on the display unit 12 by the picture display module 134, as shown in FIG. 6.

When the aspect ratio of the display is smaller than the aspect ratio of the picture, please refer to Figure 7-11 for the adjustment process. First, enlarge or reduce the length of the picture to the length of the display screen. As shown in Figure 7, the enlarged and/or reduced pictures are E and F, respectively. Figure 8 shows the display screen. The widths are E and G, respectively, where F < G. The picture adjustment module 133 enlarges the picture width/picture width, that is, G/F times, the length of the enlarged picture is E*G/F times, and the width is G, then the length of the enlarged picture exceeds The part showing the length of the screen (hereinafter referred to as the long excess) A'=E*G/FE, as shown in FIG.

As shown in FIG. 10, the picture adjustment module 133 intercepts a picture of the a'% of the long excess from the wide side of the left side of the picture along the long side of the enlarged picture, that is, a picture of A'*a'%, where a 'As a preset value, it can be set by the manufacturer, or it can be set by the user according to the actual situation. When setting, the main part of the picture is not intercepted, such as the character body. After the image on the left side is intercepted, the picture adjustment module 133 intercepts a 1-a% long picture beyond the wide side of the right side of the picture from the wide side of the picture to the left. The captured picture is displayed on the display unit 12 by the picture display module 134, as shown in FIG.

As shown in FIG. 12, it is a flowchart of a method of adjusting a picture displayed on an electronic device. First, the picture acquisition module 131 is configured to acquire a picture to be displayed from the external storage device 2 or the storage unit 11 (step S121).

The display mode determining module 132 acquires the aspect ratio of the picture to be displayed and the display unit 14 The aspect ratio of the screen is displayed, and it is judged whether the aspect ratio of the display picture coincides with the aspect ratio of the display screen (step S122).

When the aspect ratio of the displayed picture coincides with the aspect ratio of the display screen, the picture display module 134 displays the picture full screen (step S123).

When the aspect ratio of the displayed picture does not match the aspect ratio of the display screen, the picture adjustment module 133 first adjusts the picture. When adjusting, it is first determined whether the aspect ratio of the display screen is greater than the aspect ratio of the picture. When the aspect ratio of the display screen is larger than the aspect ratio of the picture, please refer to the description of Figure 2-6. When the aspect ratio of the display screen is smaller than the aspect ratio of the picture, please refer to the figure for the adjustment process. 7 - Description of Fig. 11 (step S124).

The adjusted picture is displayed on the display unit 12 by the picture display module 134 in full screen (step S125).

1‧‧‧Electronic device

2‧‧‧External storage devices

11‧‧‧ storage unit

12‧‧‧Display unit

13‧‧‧Processing unit

14‧‧‧ interface

131‧‧‧Image acquisition module

132‧‧‧Display mode determination module

133‧‧‧ Picture Adjustment Module

134‧‧‧ Picture display module

Claims (8)

An electronic device having a picture adjustment function, the electronic device includes a display unit, a picture acquisition module, and the picture acquisition module is configured to obtain a picture to be displayed from a storage device, wherein the electronic device further includes a display mode determining module for obtaining whether the aspect ratio of the picture to be displayed and the aspect ratio of the screen are consistent; a picture adjusting module, when the aspect ratio of the picture is inconsistent with the aspect ratio of the display screen, Display the picture to adjust, when adjusting, first determine whether the aspect ratio of the display screen is larger than the aspect ratio of the picture; when the aspect ratio of the display screen is larger than the aspect ratio of the picture, the picture adjustment module enlarges/reduces the picture to the picture The length of the screen is equal to the length of the display screen, and the length of the enlarged image is greater than the a% and (1-a%) of the portion of the enlarged screen from the long side of the enlarged/reduced image and the bottom of the picture; When the aspect ratio of the display screen is smaller than the aspect ratio of the picture, the picture adjustment module enlarges/reduces the picture to the width of the picture equal to the width of the display screen, and is widened from the left side of the enlarged/reduced picture respectively. And the wide side of the right side begins to cut off the enlarged picture beyond the length of the display screen a'% and (1-a'%) of the picture; a picture display module for full screen display of the captured picture The display unit. An electronic device having a picture adjustment function according to claim 1, wherein the storage device is a storage unit in the electronic device. An electronic device having a picture adjustment function according to claim 1, wherein the storage device is an external storage device connected to the electronic device through an interface. An electronic device having a picture adjustment function as described in claim 1 of the patent application, wherein When the mode determining module determines that the aspect ratio of the picture is consistent with the aspect ratio of the display screen, the picture display module displays the picture to be displayed on the display unit in a full screen. An electronic device having a picture adjustment function according to claim 1, wherein a and a' are preset values. A method for adjusting a picture displayed on an electronic device, the method comprising: acquiring a picture to be displayed; obtaining an aspect ratio of the picture to be displayed and an aspect ratio of the display screen of the display unit, and determining an aspect ratio of the picture Whether the aspect ratio of the display screen is consistent; when the aspect ratio of the picture is inconsistent with the aspect ratio of the display screen, the picture to be displayed is adjusted. When adjusting, it is first determined whether the aspect ratio of the display screen is larger than the aspect ratio of the picture; When the aspect ratio of the display screen is larger than the aspect ratio of the picture, including: enlarging/reducing the picture to the length of the picture is equal to the length of the display screen; respectively, starting from the enlarged/reduced picture, the long side of the picture and the bottom of the picture are cut off and enlarged. The width of the picture exceeds the a% and (1-a%) of the portion of the display width; when the aspect ratio of the display is smaller than the aspect ratio of the picture, including: enlarging/reducing the picture to the width of the picture is equal to the display screen The width of the image is taken from the wide side and the wide side of the left side of the enlarged/reduced image to capture the a'% and (1-a'%) of the enlarged image beyond the length of the display; after the image is taken ,full Display image after the interception. The method for adjusting a picture displayed on an electronic device according to claim 6 , wherein the method further comprises the step of: displaying a full screen when the aspect ratio of the picture is consistent with the aspect ratio of the display screen; The picture is in the display unit. A method for adjusting a picture displayed on an electronic device as described in claim 6, wherein a and a' in the picture adjusting step are a preset value.