TWI393985B - Method for producing decorative pictures of an digital image - Google Patents

Description

Method for producing decorative image of digital image

The invention relates to a method for generating a decorative pattern of a digital image, in particular to a method for generating a decorative pattern of a digital image of a decorative pattern by using a light source of a scene.

A general user can use a digital camera to take a scene into a digital image (digital photo), and further add a decorative pattern such as a line or a text to the digital image. In this way, in addition to the original scene, the digital image has more special patterns, so that the digital image has a special visual perception.

For example, a digital camera produced by some digital camera manufacturers can provide a user to select a pattern to be added from the display screen of the digital camera and its joining position immediately after the digital image is taken, and then the digital camera will automatically The pattern is merged with the digital image. More digital camera manufacturers use the display screen as a touch panel feature, allowing users to freely create the desired pattern on the touch screen, and then create the user-created pattern. Merged with a digital image.

The above method of adding a decorative pattern to a digital image can be classified into a retouch method, which can be achieved by using a software program, and the decorative patterns cannot be integrated into the scene of the digital image, which makes it easy to feel. Not true. In addition, there is currently no method or device that can directly extend the existing light source out of the pattern and then take a digital image, which is a pity.

On the contrary, the present inventors felt that the above-mentioned deletion could be improved, and therefore proposed a present invention which is rational in design and effective in improving the above-mentioned deficiency.

The main object of the present invention is to provide a method for generating a decorative image of a digital image, which can extend a light source of a scene in a digital image into a decorative pattern.

In order to achieve the above object, the present invention provides a method for generating a decorative image of a digital image, comprising the steps of: providing a camera device having a movable image sensor and a shutter; defining a decorative pattern; Facing at least one light source; opening the shutter to image the light source on the image sensor; moving the image sensor according to the content of the decorative pattern, changing a position where the light source is imaged on the image sensing; and turning off the The shutter captures the image on the image sensor into a digital image.

The invention has the following beneficial effects:

1. The present invention can change the position of the light source imaged on the image sensor, and let the change track of the image forming position of the light source form a defined decorative pattern. The decorative pattern can then be further captured as a digital image or added to other digital images.

2. During the process of generating the decorative pattern, the relative position of the imaging device and the light source is kept constant, and only the image sensor inside the imaging device is translated up, down, left, and right relative to the light source.

3. The decorative pattern produced by the light source can be pre-simulated to judge whether it is inappropriate or not. If not appropriate, re-select other sources to create the decorative pattern.

4. Since the decorative pattern of the digital image is extended by the light source therein, the decorative pattern and other scenes in the digital image are not significantly separated.

The detailed description and drawings of the present invention are to be understood as the

Referring to the first and third figures, the present invention provides a method for generating a decorative image of a digital image, which has the following steps: Step S100: First, a photographing device 10 is provided. The camera device 10 has a processor 11, a lens group 12, an image sensor 13, a display screen 14, a shutter 15, and an optical image stabilizer (OIS). 16. The photographing device 10 can capture an image of a scene facing the lens group 12 and capture a digital image. The processor 11 can control the operation of each component. The lens group 12 can inject light from the front scene of the lens group 12 onto the image sensor 13. The photosensitive element of the image sensor 13 can sense the intensity of the light. And recording, thereby allowing the scene to be imaged therein; the display screen 14 is for the user to observe the image captured by the lens group 12, the previously captured digital image or other operation information; the shutter 15 is disposed on the image sense In front of the detector 13, it is controlled whether the light can pass through to the image sensor 13.

The operation principle of the lens unit 12, the image sensor 13, the display screen 14, and the shutter 15 of the above-described imaging device 10 is substantially the same as that of the prior art, and is not the focus of the present invention, and therefore will not be described in detail.

The optical image stabilizer (or optical anti-vibration) 16 is composed of a plurality of motion sensors and an actuator (not shown), and the actuating element is connected to the On the image sensor 13. When the imaging device 10 vibrates, the motion sensing component can detect the horizontal displacement direction (meaning displacement of the upper, lower, left and right) and the displacement amount of the imaging device 10, and then the actuation element can be reversed (with the direction of displacement of the imaging device 10) Conversely, the image sensor 13 is moved to the same amount of displacement so that the image sensor 13 does not vibrate with the camera 10, so that the light incident on the image sensor 13 does not shift. The present invention utilizes the optical image stabilizer 16 to move the function of the image sensor 13 to achieve the object of the present invention.

Furthermore, the imaging device 10 used in the present invention may be a digital camera, a camera-enabled mobile phone, etc., and the hardware specifications of the imaging device 10 are not limited.

Step S102: Next, a decorative picture 20 to be displayed in the digital image 60 is defined (refer to the fourth figure). The decorative pattern 20 may be a pattern of lines such as polygons, hearts, stars, arrows, or the like, or may be some characters, such as "love", "I" or "happy day", etc., with special meaning words, letters or words. String, and does not limit English letters. The decorative patterns 20 are stored in the imaging device 10, and the user can select the decorative pattern 20 desired by the user by displaying the prompt of the screen 14. In addition, when the display screen 14 is a touch screen, the user can also draw the homemade decorative pattern 20 by touching the display screen 14.

Each of the decorative patterns 20 corresponds to the order of movement of the set of image sensors 13. The processor 11 first converts the decorative pattern 20 into a bitmap form (or the decorative pattern 20 itself is in the form of a bitmap) and calculates the relative position between each point. In the following steps, the processor 11 can translate the image sensor 13 according to the order and position of the points.

Step S104: After that, the user faces the photographing device 10 toward the at least one light source 30. The light source 30 can be any illuminant in the scene, such as a star, a moon, a candle or a light bulb, and the effect of the decorative pattern 20 produced by the different light sources 30 is different. In order to make the decorative pattern 20 more obvious, the brightness of the light source 30 needs to be larger than the brightness of the surrounding scenery (for example, the candle 40 and the table 50). In this embodiment, the light source is a flame 30 at the top of a candle 40, and then the surrounding objects 40, 50 are relatively dark. The imaging device 10 is fixedly disposed in front of the light source (flame) 30, and the relative position of the imaging device 10 and the light source 30 remains fixed, and only the image sensor 13 inside the imaging device 10 is uniquely moved.

Step S106: Next, the user presses the photographing button (not shown), opens the shutter 15 of the photographing device 10, and performs an exposure operation, so that the light of the light source 30 can be incident on the image sensor 13 Upper, the image of the light source 30 is clearly imaged on somewhere (a photosensitive element) of the image sensor 13. The other scenes 40, 50 cannot be clearly imaged on the image sensor 13 because they are darker.

Step 108: After that, the optical image stabilizer 16 moves the image sensor 13 according to the content of the defined decorative pattern 20 to change the position of the light source 30 on the image sensor 13. For example, the decorative pattern 20 selected in the embodiment is a text pattern "love", and the image sensor 13 moves according to the order and relative position between the points constituting "love". The position at which the light source 30 is imaged on the image sensor 13 also changes with each movement.

The time taken for the image sensor 13 to move is determined by the complexity of the decorative pattern 20 and the moving speed and moving distance of the image sensor 13. In order to prevent the exposure time of the image sensor 13 from being too long, the distribution range of the decorative pattern 20 should be short.

Step S110: Finally, when the image sensor 13 moves in accordance with the movement order corresponding to the decorative pattern 20, the change trajectory of the light source 30 at the imaging position of the image sensor 13 is exactly equal to the decorative pattern 20. Referring to the fourth figure, the shutter 15 will be closed, the exposure will be stopped, and then all images of the image sensor 13 will be captured as a digital image 60. The digital image 60 approximately displays the image of the candle 40 and the table 50, but clearly shows the light source (flame) 30 and the decorative pattern 20 "love" extended by the light source 30.

A digital image 60 having a decorative pattern 20 can be produced by the method of the present invention described above, and the decorative pattern 20 is extended from one of the digital images 60.

In practical applications, the size, color, brightness, position, and the like of the external light source 30 affect the effect of the decorative pattern 20 that it produces. It is possible that the size of the light source 30 is too large, the brightness is insufficient, or the light source 30 is excessive, the distribution is too dense, etc., and the resulting decorative pattern 20 is not noticeable, erroneous or overlapping. If it is known in advance whether or not the decorative pattern 20 generated by a certain light source 30 is appropriate, the present invention can be more conveniently used, and the occurrence of shooting errors can be reduced.

Therefore, referring to the fifth figure, the second embodiment of the present invention is different from the first embodiment in that it adds a function of "simulation", which is described in detail as follows: Step S200: When After the user faces the imaging device 10 toward the at least one light source 30 (step S104), the processor 11 can first simulate the decorative pattern 20 generated by the light source 30. The method of simulation is to replace each point constituting the decorative pattern 20 with the light source 30, and then superimpose it.

Step S202: Then, the simulated decorative pattern 20 is displayed on the display screen 14 for the user to watch.

Step S204: The user determines whether the decorative pattern 20 is appropriate to determine whether the photographing device 10 is to be redirected toward the other light source 30. If yes, go back to step S104; if no, continue to step S106 or the like to actually generate the decorative pattern 20.

Regardless of the first or second embodiment, the method of the present invention is performed with the scenes 40, 50 around the light source 30 being dark, so that the captured digital image 60 cannot display the scenes 40, 50 around the light source 30. .

Therefore, referring to the sixth figure, the present invention proposes a third embodiment, which adds a few steps based on the first embodiment, and is described in detail as follows: Step S300: First, the image sensor 13 corresponds to the decorative pattern 20 After the moving sequence is moved (step S108), a flash 17 of the photographing device 10 will be turned on to illuminate the scenes 40, 50 around the light source 30, so that the scenes 40, 50 can be clearly imaged in the image sensing. On the device 13. The flash 17 needs to be smaller than the brightness of the light source 30 so as not to cover the image of the light source 30 on the image sensor 13.

Referring to the seventh figure, after performing step S110, all images of the image sensor 13 are captured into a digital image 60. The digital image 60 clearly shows the image of the scene (the candle 40 and the table 50), and the light source (flame) 30 and the decorative pattern 20 extended by the light source 30.

In addition to the method of the third embodiment, the digital image 60 can be used to display the scenes 40, 50 around the light source 30. The present invention further provides a fourth embodiment, which can achieve the same effect. Referring to the eighth figure, the fourth embodiment also adds a few steps based on the first embodiment, which is described in detail as follows: Step S400: The photographing device 10 captures a digital image 60 having a decorative pattern 20 (such as the fourth After the illustration, the camera 10 again turns the shutter 15 on, and activates the flash 17 to illuminate the scenes 40, 50 around the light source 30.

Step S402: The scenes 40 and 50 around the light source 30 are imaged on the image sensor 13.

Step S404: Referring to the ninth figure, the shutter 15 is closed, and the image on the image sensor 13 is captured as a second digital image 70. The second digital image 70 clearly shows the scenes 40, 50 around the light source 30 and the light source 30, but without the decorative pattern 20.

Step S406: Finally, the digital image 60 and the second digital image 70 are combined such that the second digital image 70 also has a decorative pattern 20 (as shown in the seventh figure). In the merging, the decorative pattern 20 of the previously captured digital image 60 is first captured, and then the captured decorative pattern 20 is added to the second digital image 70. After the merging, in order to make the decorative pattern 20 and the image of the second digital image 70 more natural, the edge of the decorative pattern 20 is moderately blurred.

The above embodiments are all based on a single light source 30. Referring to the tenth figure, the present invention can also cause two or more light sources 30 to simultaneously produce the decorative pattern 20, and the decorative pattern 20 is a "heart-shaped" pattern.

In summary, the method for producing a decorative image of a digital image of the present invention can have the following effects:

1. The present invention can change the position of the light source 30 imaged on the image sensor 13, and let the change track of the position of the light source 30 form the defined decorative pattern 20. Thereafter, the decorative pattern 20 can be further captured into a digital image 60 or added to other digital images 70.

2. During the process of generating the decorative pattern 20, the relative position of the imaging device 10 and the light source 30 remains fixed, and only the image sensor 13 of the imaging device 10 translates up and down and left and right relative to the light source 30.

3. The present invention can pre-simulate the decorative pattern 20 generated by the light source 30, and if appropriate, re-select other light sources 30 to generate the decorative pattern 20.

4. The present invention allows a plurality of light sources 30 to simultaneously produce a decorative pattern 20.

5. The present invention can utilize the optical image stabilizer 16 of the camera 10 to effect movement of the image sensor 13.

6. Since the decorative pattern 20 of the digital image 60 is extended by the light source 30 therein, the decorative pattern 20 and the other scenes 40, 50 of the digital image 60 are less clearly separated.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, the equivalents of the present invention and the equivalents of the drawings are all included in the present invention. Within the scope of protection, it is given to Chen Ming.

10‧‧‧Photographing device

11‧‧‧ Processor

12‧‧‧ lens group

13‧‧‧Image sensor

14‧‧‧ Display screen

15‧‧ ‧Shutter

16‧‧‧Optical Image Stabilizer

17‧‧‧Flash

20‧‧‧ decorative patterns

30‧‧‧Light source (flame)

40‧‧‧ Scenery (candle)

50‧‧‧ Scenery (table)

60‧‧‧ digital imagery

70‧‧‧ second digital image

Steps S100 to S110

Steps S200 to S204

Step S300

Steps S400 to S406

The first figure is a functional block diagram of a photographing apparatus for producing a decorative pattern of a digital image of the present invention.

The second figure is a flow chart of a method for producing a decorative pattern of a digital image of the present invention.

The third figure is a schematic diagram of the shooting situation of the method for producing the decorative pattern of the digital image of the present invention.

The fourth figure is a schematic diagram of a digital image of a method for producing a decorative pattern of a digital image of the present invention.

Figure 5 is a flow chart showing the method of the second embodiment of the method for producing a decorative image of a digital image of the present invention.

Figure 6 is a flow chart showing the method of the third embodiment of the method for producing a decorative image of a digital image of the present invention.

The seventh figure is a schematic diagram of another digital image of the method for producing the decorative pattern of the digital image of the present invention.

Figure 8 is a flow chart showing the method of the fourth embodiment of the method for producing a decorative image of a digital image of the present invention.

The ninth figure is a schematic diagram of the second digital image of the method for producing the decorative pattern of the digital image of the present invention.

The tenth figure is a schematic diagram of still another digital image of the method for producing the decorative pattern of the digital image of the present invention.

Steps S100 to S110

Claims (9)

A method for generating a decorative image of a digital image includes the following steps: providing a photographing device having a movable image sensor and a shutter; defining a decorative pattern; facing the photographing device toward at least one light source; and opening the shutter And imaging the light source on the image sensor; moving the image sensor according to the content of the decorative pattern, changing a position where the light source is imaged on the image sensing; and closing the shutter, the image sensor The upper imaging is taken as a digital image. The method for generating a decorative pattern of a digital image according to claim 1, wherein the step of “facing the imaging device toward at least one light source” further comprises the steps of: simulating the decorative pattern generated by the light source; displaying the simulation The decorative pattern is on a display screen of the photographing device. The method for generating a decorative pattern of a digital image according to claim 2, wherein after the step of displaying the simulated decorative pattern on a display screen of the photographing device, the method further comprises the following steps: determining the simulated Whether the decorative pattern is appropriate to determine whether the photographing device is to be redirected toward another light source. The method for generating a decorative pattern of a digital image according to claim 1, wherein the step of “changing the position of the light source on the image sensor” further comprises the steps of: turning on the camera A flash lamp that images the scene around the light source onto the image sensor. The method for generating a decorative pattern of a digital image according to claim 1 further includes the steps of: opening the shutter to activate a flash of the photographing device; and imaging the scene around the light source on the image sensor Turning off the shutter, taking the image on the image sensor into a second digital image; and combining the digital image and the second digital image. The method for generating a decorative pattern of a digital image according to claim 5, wherein the step of combining the digital image and the second digital image further comprises the steps of: capturing the decorative pattern of the digital image And merging the decorative pattern into the second digital image. The method for generating a decorative pattern of a digital image according to claim 6 of the patent application further includes the following steps: blurring an edge of the decorative pattern. The method for producing a decorative pattern of a digital image according to claim 1, wherein the decorative pattern includes characters and lines. The method for producing a decorative pattern of a digital image according to claim 1, wherein the decorative pattern corresponds to a moving order of the image sensor.