TWI299141B - A method and system for zooming digital images - Google Patents

Description

1299141 V. INSTRUCTION DESCRIPTION (1) 1. FIELD OF THE INVENTION The present invention relates to a method and system for image display, and more particularly to a method for calibrating a display position of an image and adjusting a display ratio using an index or a cursor With the system. Second, [previous technology] In image display, it is often necessary to display image data on the surface at a certain scale. Such applications are often built into many software or hardware, such as image editing software or digital cameras. The image to be displayed by the middle is enlarged or reduced. In the prior art, such an application usually uses an image position (such as a pixel) whose image data is located in the center of the display area as a position reference, and the original image data is adjusted according to a display ratio, and then regenerated in the center of the display area by the position reference. An image. Since the new image must be larger or smaller than the original display range when the display scale is changed, the user must shift the screen so that the portion of the image that he or she wants to see can be displayed in the display area. This means that it will cost a lot of computing costs. As shown in the first figure, first, in step 1 and step 1, a display ratio and a position reference are obtained. The display ratio can be obtained in many ways, such as in one The selected display ratio of the group is selected one by one, the display ratio is increased by an internal ratio, or directly input by the user. The position reference is generally obtained by displaying the position in the upper left corner of the display area (such as the first pixel position of the display area) in the displayed data. Then, as shown in step 1 2 0, all the image data are displayed according to the display ratio.

1299141 V. INSTRUCTIONS (2) Adjust the scale to produce a new image. Next, the position reference will display the image in the display area: step = according to the description, and then continuously pan the image until the e-sea _ finally, as shown in the step, the image portion of the display is not visible.丨 丨 i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i First of all, in general, 爻 is always stored in an image temporary storage area (Bu: in the temporary storage area only - part will be, ΐ: idle in the skin. In addition, the image is The translation needs to be in the area, which requires a lot of computational cost; the image displayed after == flat T needs to be constantly; second. The mother's translation requires an additional 5 to fit the cost and power. Between the style /, f, if the application is not economical with the use of battery power, such as digital camera, the hardware is obviously, the method of constantly shifting the picture in processing is very good, to adjust the display ratio A further method or system is provided for the achievable, so a more economical network eight device is needed.

Page 6 1299141 V. Invention Description (3) System, which allows the user to arbitrarily select some images in the display area to zoom in or out and redisplay. In addition, another main object of the present invention is to provide a method and system for adjusting a digital image display by using a plurality of coordinates, and allowing a user to select two coordinates or a range to obtain a position reference and a display ratio, so as to facilitate the user to arbitrarily select. Part of the image in the display area is enlarged or reduced and redisplayed. According to the above object, the present invention provides a method for calibrating and repositioning images by using a single calibration, using a pointer to calibrate a position reference, and then using a display ratio to reproduce the image of the display area according to the position reference and the display scale. The invention further provides a method for positioning and adjusting images by using a plurality of coordinates, and calibrating two coordinates by using indicators to obtain a position reference and a display ratio according to the two coordinates, and regenerating the image of the display area according to the position reference and the display ratio. image. The invention also provides a system for locating and adjusting images, comprising: an image memory for storing image data; and an interface device for generating a position reference and a display ratio, wherein the position reference image is in the image data. a specific position; an image processing unit for generating image displayed on the display area according to the display scale and the position reference; and

1299141 V. INSTRUCTIONS (4) The display device is used to display images in the display area. Since the redisplayed picture can be expected in the original picture, there is no need to continuously shift the picture, which saves a lot of computational cost, and at the same time saves the cost of a large number of image staging areas. 4. Embodiments Some embodiments of the present invention will be described in detail below. However, the present invention may be widely practiced in other embodiments, and the scope of the present invention is not limited by the detailed description, which is subject to the scope of the following patents. Further, in order to provide a clearer description and a better understanding of the present invention, the various parts of the drawings are not drawn according to their relative dimensions, and some dimensions have been exaggerated compared to other related dimensions; the irrelevant details are not fully drawn. Out, in order to simplify the illustration. In the prior art, when the image adjustment is performed, the method of first adjusting the scale and then shifting the image is used, so that a larger image temporary storage area and an operation cost are required. Therefore, the main feature of the present invention is to mark the position reference actually displayed in the screen, and then calculate the new face according to the display scale (presettable or adjustable by the user) to redisplay the display on the display. In the area (for example: LCD or OLED panel). Therefore, it is not necessary to continuously translate the kneading surface during the image adjustment process, so that a large amount of computational cost can be saved. Also because the picture doesn't need to be constantly panned, so you don't need to have all of it

1299141 V. Invention Description (5) The image data is adjusted for the translation. Only some of the image data needed for the new image needs to be scaled to generate a new image, thus saving unnecessary image temporary storage area. In addition, the generated pixels of the new image can be directly output to the display area without the need for the image temporary storage area. Therefore, an embodiment of the present invention is a method for adjusting the digital image display by using a single label. As shown in FIG. 2A, it is a schematic diagram of the flow of this embodiment. First, the image is displayed in the display area by step 2 1 0. The image can be displayed by the digital capture device, and then displayed according to the image data format, and the image data can be in different formats (for example: pixels, files) The invention is stored in different storage media (for example, a magnetic disk, a memory card, a memory, etc.), and the present invention does not limit the format and storage of the image data. In addition, the image displayed by the display area may be only part or all of the captured image. The present invention does not limit the range in which the captured image data can be displayed in the display area. The block 2 1 0 0 in the second B diagram is a schematic diagram of the corresponding step 2 1 0. Then, as shown in step 2 2 0, a position reference of the image data is obtained, and the position reference is obtained according to the coordinate of the image data with respect to one of the display regions, that is, the relative position of the coordinate indicated in the display region in the image data. The location is used as a location benchmark. For example, an indicator (such as a cursor; Cursor) can be moved to the coordinates to obtain a position reference, or the user inputs coordinates to obtain a position reference coordinate, which is based on the image data.

1299141

5. The relative position of the object in the description of the invention (6), that is, which is used to display the coordinates in the image data. The relative position may be a relative coordinate or a pixel position, and the manner in which the present invention obtains the position reference and the relative position is not limited. In addition, in step 2200, the coordinates of the center position of a display area can also be obtained at the same time as a reference coordinate point when the image is redisplayed. The block 2 2 0 0 in the second B diagram is a schematic diagram of the corresponding step 220.

Next, according to the position reference corresponding to the position of the cursor in step 2 2 0, and according to step 2300, a display ratio is obtained. The display ratio can be obtained in a plurality of ways, for example, increasing the display ratio by a predetermined ratio, or selecting a ratio among a set of preset display ratios, the ratio of the proportional force σ, or The method of obtaining the display ratio is not limited by the present invention.

Finally, as shown in step 240, the image data is directly regenerated to display the image according to the display scale and the position reference, or the coordinates of the center position are referenced and the image is displayed in the display area. The display of the image is based on the position reference of the index, and the positioning point may be any specific position in the display area. For example, the specific position may be the center of the display area and the four corners of the display area (such as the upper left corner). The present invention is not limited to this particular position, one of the upper right corner, the lower left corner and the lower right corner, or other locations. Then, the image is regenerated in the display area according to the display ratio, and the regenerated image may be enlarged according to a preset display ratio.

Page 10 1299141 V. Invention Description (7) Zoom out or zoom in or out by directly multiplying the original image data by the display scale. In addition, the size of the image can only match the display area (ie, only the image is generated by the partial image data), and the image area can be beyond the display area (ie, the image is generated by the entire image data), or the coordinates of the center position can be referenced. Displayed in the display area, the present invention does not limit the size of the image. The former can save the cost of the image temporary storage area, or even the image temporary storage area is directly displayed in the display area, while the latter can save the user time to pan the image, but it is more expensive to calculate (such as electricity) and requires a large number of images. Storage area. The block 2 3 0 0 in the second B diagram is a schematic diagram of the corresponding step 240 processing. Accordingly, the present embodiment not only has the function of the prior art panning, but also allows the user to select the image more conveniently and saves time and effort. Another embodiment of the present invention is a method for adjusting a digital image display by a plurality of coordinates. The third A is a schematic flow chart of the embodiment. The difference between this embodiment and the previous embodiment is that the example replaces step 2 2 0 and step 2 3 0 in the second A picture with steps 3 2 0 and step 3 30 respectively. In step 3 20, a first coordinate 31 10 (as shown in FIG. 3B) and a second coordinate 3120 (as shown in FIG. 3B) are obtained, and the first coordinate and the second coordinate are obtained. It may be input by the user, or the user may sequentially move an indicator displayed on the display area to the position of the first coordinate and the second coordinate to obtain a range or area of the target. The obtaining of the first coordinate and the second sample may be regarded as a range of the calibration display area, or may be regarded as obtaining a range by calibrating the display area.

1299141

V. Description of the invention (8)

One mark and the second mark. For example, in the manner of calibrating a rectangle in the display area (as shown by 3 2 1 0 in the third B diagram), the indicator can be first calibrated at the first coordinate 3 1 1 0, and then, while moving the indicator, A rectangular frame line 3 2 1 0 at which the first coordinate and the position of the index are diagonal are displayed in the display area to display the range of the indication. Or the direct control indicator successively produces a rectangular frame line 3 2 1 0 with the two coordinates as opposite corners after the first coordinate 3 1 1 0 and the second coordinate 3 1 2 0 are calibrated, to display the range of the indication. . Similarly, the range to be calibrated is not limited to a rectangle, but may be a circle (generated by the first coordinate and the second coordinate as a diameter), an ellipse (the long axis or the short axis of the ellipse with the first coordinate and the second coordinate) The axis is generated by the aspect ratio of the display area).

Then, in step 303, the display ratio and the position reference are calculated according to the range size defined by the first coordinate 31 1 0 and the second coordinate 3 1 2 0, wherein the position reference may be the first coordinate 3110 and the second The center point 3 1 3 0 of the range defined by either or both of the coordinates 3120 (as shown in Figure 3B) is taken. The display ratio may be obtained according to a ratio of a vertical width of the display area to a vertical distance between the first coordinate and the second coordinate, or a horizontal width of the display area relative to a horizontal level between the first coordinate and the second coordinate The ratio of distance is obtained. Finally, as shown in step 2404, the image data is directly regenerated to the display image according to the display scale and the position reference, and the details are the same as in the previous embodiment, and details are not described herein again.

Page 12 1299141 V. Inventive Description (9) According to the above disclosed method, another embodiment of the present invention provides a system for adjusting digital image display, as shown in the fourth figure, including an image memory unit. 31. An interface unit 32, an image processing unit 33, a display unit 34 and a temporary storage unit 35. The image memory unit 31 is used for δ recording and shirt image data 3 1 2, and the image data 3 1 2 is generated according to the above steps 2 1 ' _ by the image processing unit 3 3 according to the image data 3 1 2 And the image is displayed by the display unit 34, wherein the generated image can be stored in a temporary storage unit 35, so the temporary storage unit 35 can include an image buffer (buf f er ) to store the image for The display unit 3 is shown. In addition, the & 'image processing unit 3 3 further includes an indicator 3 < 5 j ' in the image. The position of the indicator 3 5 2 can be corresponding to a target position, and the coordinate $ can be stored in the temporary storage unit 35. At the same time, the position of the index 3 5 2 can be controlled by the interface unit 32, wherein the coordinate can be defined as the position where the hk 3 5 2 is displayed in the display area 3 4 2, or the image data 3^2 It is displayed in the display area 342 where the indicator 352 is located (such as a pixel position in the image material 3 1 2, the pixel position is displayed at the position of the indicator 3 5 2). In addition, the interface unit 3 2 can be used to generate a position reference 3 5 4 and a display ratio 3 5 6 according to the above steps 2 2 0 and 2 3 0, and the position reference 3 5 4 is in the image data 31 2 a specific location, which can be obtained by the user inputting the coordinates or moving the indicator 325 to a specific location.

1299141 V. INSTRUCTIONS (10) The standard coordinates 3 5 2 are used to obtain or use a coordinate to obtain a specific position in the image data 3 i 2 , wherein the position reference 3 54 and the display ratio 3 5 6 can be stored in the temporary storage unit. 35, so the temporary storage unit 35 can include a plurality of registers for storing the above-mentioned index coordinates 3 5 2. The position reference 3 5 4 and the display ratio 3 5 6 are obtained again to obtain the medium package ' The control unit displays no more than the image: the interface unit 3 2 can be based on the above steps 3 2 0 and step 3 3 0 the first standard 3110 and the second coordinate 3120, and according to the two coordinates = the reference 3 5 4 and display ratio 3 5 6. Therefore, in the interface unit 3 2 ^ option 'to select the display ratio 3 5 6 acquisition mode per input, or by a set of preset display ratios 3 5 6 or according to ^ # 33 first and second The coordinates are obtained. Accordingly, the image portion can be regenerated on the display area 342 according to the above-mentioned step 240, and the image data 3 1 2 is re-generated according to the position reference 345. The other details of the present embodiment have been described in the foregoing embodiments. As described in the above, we will repeat them. This is the day and month of the yoke and is applied to the system with positioning and display capabilities. Can the system be indispensable for the invention? For example, if it is applied to a touch screen, the position reference or coordinates of the name can be displayed on the screen. When being touched, it can be obtained in the screen, the indicator can be displayed on the screen, or the portable type can be displayed or the invention can be applied to the surface of the digital camera or the mobile phone.

Page 14 1299141 V. Description of invention (11)

The above description is only the preferred embodiment of the present invention, and is not intended to limit the patent application rights of the present invention. The above description should be understood and implemented by those skilled in the art, so that the other embodiments are not deviated from the present invention. Equivalent changes or modifications made in the spirit of the disclosure should be included in the scope of the claims below.

Page 15 1299141 _ BRIEF DESCRIPTION OF THE DRAWINGS V. [Simple Description of the Drawings] The advantages and advantages of the present invention over the prior art are more readily apparent upon comparison with the specific embodiments with reference to the following figures, wherein: The flow of the prior art is not intended to be a schematic flowchart of a specific embodiment of the present invention. The third A and the third B are schematic flowcharts of a specific embodiment of the present invention; The fourth figure is a schematic diagram of the main part of the functional block diagram of another embodiment of the present invention: 3 1 image memory unit 3 1 2 image data 32 interface unit 3 3 image processing unit 34 display unit 342 display area 35 temporarily Storage unit 3 5 2 indicator coordinates 3 5 4 position reference 3 5 6 display ratio

Claims (1)

1299141 VI. Patent Application Range 1. A method for adjusting a digital image display by using a single label, comprising: displaying an image in a display area, the image is displayed according to an image data; obtaining a position reference of the image data, The position reference is obtained by taking the image data relative to a coordinate of the display area; 'acquiring a display ratio; and generating a redisplayed image according to the display ratio and the position reference in the display area. 2. The method for adjusting the digital image display by using a single label as described in the first item of the patent application, wherein the coordinate is displayed by moving the indicator displayed in the display area to the coordinate, according to the coordinate of the indicator. To obtain, 3. The method for adjusting the digital image display by a single label as described in item 2 of the patent application scope, wherein the above indicator is a cursor. 4. The method for adjusting the digital image display by a single label as described in the first item of the patent application, wherein the display ratio is selected from a plurality of preset display ratios. 5. The method for adjusting the digital image display by a single label as described in item 1 of the patent application scope, wherein the above display ratio is obtained by manual input. Page 17 1299141 6. Patent application scope 6. The method for adjusting digital image display by a single label as described in item 1 of the patent application scope, wherein the redisplayed image is positioned in the display area by the position reference. A specific position is regenerated in the display area according to the display ratio. 7. The method for adjusting a digital image display by a single label as described in claim 6 wherein the display area comprises four corners of an upper left corner, an upper right corner, a lower left corner, and a lower right corner, wherein the specific location is Choose one of the four corners to produce. 8. The method for adjusting a digital image display by a single label as described in claim 1 wherein, when a position reference of the image data is obtained, a coordinate of a center position of the display area is further acquired. 9. The method for adjusting a digital image display by using a single label as described in claim 7 wherein the redisplayed image is positioned at the center position and the coordinate is displayed at the center of the display area. The proportion is regenerated. 10. The method of adjusting a digital image display by a single label as described in the first item of the patent application, wherein the redisplayed image is enlarged according to the display ratio. 11. Adjust the digits by a single label as described in item 1 of the patent application scope. Page 18 1299141 The method of image display in which the above re-proportion is reduced. *, the image is according to the display 12. As shown in the patent application scope item 6, the method of single image display, wherein the above-mentioned re-marking to adjust the number a h, bean g + α μ > ^ The image of θ $ is displayed directly in the size of the display. The size of the image is matched to the display area. 13. The method of adjusting the digital image display by a plurality of coordinates includes... Displaying an image in a display area 'the image is displayed according to an image data; obtaining a first coordinate of the image data; obtaining a second coordinate of the image data; according to the first coordinate and the second coordinate Retrieving a position reference of one of the image corresponding to the first coordinate and the second coordinate; calculating a display ratio; and redisplaying the redisplayed image in the display area according to the display ratio and the position reference. 14. The method of adjusting the digital image display by using a plurality of shyness as described in claim 13 of the patent application may further obtain a coordinate of the center position of the display area when the position reference is obtained. 15. The method of adjusting the digital image display by a plurality of coordinates as described in item 丨3 of the patent application scope, wherein the first coordinate system of the first seat and the fifth sea will be Page 19 1299141 VI. Patent Application Range When one of the indicators in the display area is moved to the first coordinate and the second coordinate respectively, it is obtained according to the coordinates corresponding to the position of the indicator. 16) A method for adjusting a digital image display by using a plurality of coordinates as described in claim 13 wherein said display ratio is based on a vertical width of said display area relative to said first one and said two coordinates The ratio of the vertical distance is obtained. 17. The method of adjusting a digital image display by using a plurality of coordinates as described in claim 13 wherein the display ratio is a horizontal width of the display area relative to a level between the first coordinate and the first coordinate The ratio of distance is obtained. 1 8) The method for adjusting a digital image display by using a plurality of coordinates as described in claim 13 wherein the position reference is a central point between the first coordinate and the second coordinate position. The position reference is displayed based on the position reference and the center position of the display area, based on the center of the remote display area. 19. The method for adjusting a digital image display by using a plurality of coordinates as described in Item 13 of the patent application scope, wherein the above-mentioned display system region includes four corners of an upper left corner, an upper right corner, a lower left corner, and a lower right corner, and is inflamed. The image data is based on the first coordinate as the position reference, and after adjusting the scale according to the ratio of the display system, positioning the position in the four corners of the display area with the position reference to select a corner. Page 20 1299141 VI. Patent application scope The display ratio is regenerated. 2 0. A method for adjusting a digital image display by a plurality of coordinates as described in claim 13 of the patent application, wherein the redisplayed image is enlarged according to the display ratio. 2 1 A method for adjusting a digital image display by a plurality of coordinates as described in claim 13 of the patent application, wherein the redisplayed image is reduced according to the display ratio. 22. A method of adjusting a digital image display by a plurality of coordinates as described in claim 13 of the patent application, wherein the size of the redisplayed image matches the display area. 23. A system for adjusting a digital image display, comprising: an image memory unit for storing an image data; an interface unit for generating a position reference and a display ratio, wherein the position reference is in the image data An image processing unit is configured to generate the image and the image displayed on the display area according to the display ratio and the position reference; and a display unit for displaying the image in the image Display area. 24. The system for adjusting a digital image display as described in claim 23, further comprising a temporary storage unit for storing the position reference, the display Page 21 1299141 VI. The scope of patent application and the ratio of the image. 2 5. The system for adjusting digital image display according to claim 23, wherein the interface device further comprises an indicator, and the indicator controls the position of the indicator by the interface device, and the indicator The position displayed in the display area is a corresponding index coordinate. 26. The system for adjusting a digital image display as described in claim 23, wherein the position reference is obtained based on the coordinate of the indicator when the indicator is moved to a specific position. 2 7. The system for adjusting digital image display as described in claim 2, wherein the display ratio is obtained by selecting one of a plurality of preset display ratios by the interface device. 2 8. The system for adjusting digital image display as described in item 23 of the patent application, wherein the above display ratio is obtained by manual input. 2 9. The system for adjusting a digital image display as described in claim 2, wherein the display ratio is directly generated according to one of the first coordinate and the second coordinate in the display area. 3 0. The system for adjusting digital image display as described in claim 29, wherein the first coordinate and the second coordinate system respectively move the indicator to Page 22 1299141 VI. Scope of application for patents When two specific locations are obtained, they are obtained according to the coordinates of the indicator. 31. The system for adjusting the digital image display according to the ninth item of the patent application, wherein the position reference is the first coordinate and the second coordinate. 32. The system for adjusting a digital image display according to claim 29, wherein the display is based on a horizontal width of the display area relative to a horizontal distance between the first coordinate and the second coordinate. The ratio is obtained. 3 3. The system for displaying a 5-week integer image display according to the ninth item of the patent application, wherein the display system is based on the vertical width of the display area relative to the first coordinate and the first; The ratio of the vertical distance between the wide standard is obtained. 34. The system for adjusting a digital image display according to claim 29, wherein the position reference is based on a center between the first center and the second full position, and the position is used as the position reference. The reference is located in the center of the display area to be redisplayed. 35. The system for adjusting a digital image display as described in claim 29, wherein the interface device further comprises an option for selecting a manner in which the display ratio is obtained. 1299141 __ VI. Scope of Patent Application 3 6. The system for adjusting digital image display as described in item 23 of the patent application, wherein the above image is generated by centering the position in the center of the display area. 3 7. The system for adjusting digital image display according to claim 23, wherein the display area comprises four corners of an upper left corner, an upper right corner, a lower left corner, and a lower right corner, and the image is positioned on the position reference. A corner of the four corners of the display area is selected to be regenerated according to the display ratio. 38. The system for adjusting a digital image display as described in claim 23, wherein the image data is scaled according to the display ratio according to the display ratio. 39. The system for adjusting a digital image display as described in claim 23, wherein the image data is scaled according to the display ratio according to the display ratio. Page 24