JP4683190B2 - Imaging apparatus, image effect applying method, and image effect applying program - Google Patents

Description

  The present invention relates to an imaging apparatus, an image effect applying method, and an image effect applying program that have an image capturing function such as a digital camera and that apply an image effect to a captured image.

In recent years, imaging devices having a photographing function such as a digital camera and a mobile phone having a camera function have become widespread. In these imaging apparatuses, image effects such as soft focus, contrast enhancement, and a cross filter can be applied to a captured image (see, for example, Patent Document 1).
JP 2000-196946 A

  However, in the above prior art, since the feature is extracted from the captured image itself and the image processing is performed, there is a problem that the image processing takes time when the image size is large. In particular, in recent years, the image size has become larger with higher image quality, and if image processing takes a long time, the waiting time until the next image can be taken becomes longer. There was a problem.

  SUMMARY An advantage of some aspects of the invention is that it provides an imaging apparatus, an image effect applying method, and an image effect applying program capable of performing image processing in a short time even when processing performance is relatively low.

For the purposes achieved, the imaging apparatus according to a first aspect of the present invention, an imaging unit, reduces the first original image designated, the first reduced image based on the predetermined the thus obtained reduced detecting the position of the feature point, a first predetermined image processing using the position information of the detected feature points to generate a second original image is in a state of being subjected to the first original image First image processing means for executing the image processing, through image display means for repeatedly executing through image display processing for displaying a captured image obtained by imaging by the imaging means on a screen at a predetermined cycle, First determination means for sequentially determining whether or not execution of the predetermined image processing is instructed while the through image display processing is being repeatedly executed by the through image display means, and the first determination The predetermined image processing by means While it is determined that execution is instructed, the first image processing is sequentially executed by using the captured image obtained by sequentially capturing images by the imaging unit as the first original image, and corresponding to each captured image. And a first control means for displaying the second original image sequentially generated by the first image processing on the screen by the through image display means instead of the captured image. And
According to a second aspect of the present invention, the first image processing unit generates the second reduced image by performing the predetermined image processing on the first reduced image, and the generated By synthesizing the second reduced image with the first original image, the second original image in a state where the predetermined image processing is applied to the first original image is generated. May be.
Furthermore, as according to claim 3, wherein the first image processing means to synthesize the first original image while expanding the second reduced image in the same field angle as the first original image Thus, the second original image in a state where the predetermined image processing is performed on the first original image may be generated.
According to a fourth aspect of the present invention, there is provided a photographing record determining means for sequentially determining whether photographing recording is instructed during the repeated execution of the through image display processing by the through image display means. When shooting recording is instructed by the shooting record determining means, shooting recording means for recording a shot image obtained by imaging by the imaging means, and when shooting recording is instructed by the shooting record determining means, Second determination means for determining whether or not execution of predetermined image processing is instructed; and when the second determination means determines that execution of the predetermined image processing is instructed, The first image processing is executed using the captured image obtained by imaging by the imaging unit as the first original image, and the second original image generated by the first image processing is replaced with the captured image. A second control means for recording by the capturing recording means, it may be further provided.

Further, according to a fifth aspect of the present invention, the apparatus further includes a compression unit that generates a compressed image by compressing a captured image obtained by imaging with the imaging unit, and the imaging recording unit is compressed by the compression unit. The compressed image may be recorded, and the first image processing means may execute the first image processing on the photographed image before being compressed by the compression means .

According to a sixth aspect of the present invention, the through image display means generates a display image by reducing a captured image obtained by imaging by the imaging means for display, and displays the generated display image on the screen. The second control means causes the first image processing to be executed by using the captured image obtained by imaging by the imaging means as the first original image, and the first control means The first image processing may be executed with the display image obtained by reducing the captured image obtained by imaging by the imaging unit for display as the first original image .

In addition, according to a seventh aspect of the present invention, the first image processing unit calculates a continuous pixel having a feature amount equal to or greater than a predetermined threshold for each horizontal line of the first reduced image obtained by the reduction. After grouping and grouping in all horizontal lines, groups adjacent in the vertical direction may be combined to form one feature point.

Further, as described in claim 8, the first image processing means may draw an arbitrary image at the position of the feature point.

According to a ninth aspect of the present invention, the first image processing means may draw a radially expanding image at the center of the feature point.

According to a tenth aspect of the present invention, the first image processing means may draw an image including a curve at the position of a feature point.

In addition, as described in claim 11, the first image processing means may draw an image scaled based on the size of the feature point at the position of the feature point.

According to a twelfth aspect of the present invention, the first image processing unit draws an independently enlarged / reduced image at the position of the feature point based on the horizontal length and the vertical length of the feature point. You may make it do.

According to a thirteenth aspect of the present invention, the first image processing unit may draw an image of a different color at the position of the feature point based on the size of the feature point.

Also, as claimed in claim 14, wherein the first image processing means detects a position of the bright spot based on the first reduced image obtained by the reduction, the position of the detected bright spot You may be drawn to any image.
Also, as claimed in claim 15, wherein the first image processing means detects a position of the first based on outline of the reduced image obtained by the reduction, the position of the detected contour portion May be emphasized.

According to another aspect of the present invention, the specified first original image is reduced, and the position of a predetermined feature point is detected based on the reduced first image obtained by the reduction. Then, the first image processing for generating the second original image in a state where the predetermined image processing using the position information of the detected feature point is performed on the first original image is executed. A method of controlling an imaging apparatus including a first image processing unit, wherein a through image display step of repeatedly executing a through image display process for displaying a captured image obtained by imaging by an imaging unit on a screen at a predetermined cycle A first determination step for sequentially determining whether or not the execution of the predetermined image processing is instructed while the through image display processing is being repeatedly executed in the through image display step; 1 judgment step The first image processing is sequentially executed with the photographed image obtained by sequentially imaging by the imaging means as the first original image while it is determined that execution of the predetermined image processing is instructed by A first control step of displaying the second original image sequentially generated by the first image processing corresponding to each captured image on the screen by the through image display step instead of the captured image It is characterized by including these .

According to a nineteenth aspect of the present invention, there is provided an image effect imparting program that reduces a first original image designated by a computer of an image pickup apparatus having an image pickup unit, and obtains a first reduced image obtained by the reduction. A second original image in a state where a position of a predetermined feature point is originally detected and predetermined image processing using the position information of the detected feature point is performed on the first original image is performed. First image processing means for executing the first image processing to be generated, and through image display for repeatedly executing a through image display process for displaying a captured image obtained by imaging by the imaging means on a screen at a predetermined cycle And first determination means for sequentially determining whether or not execution of the predetermined image processing is instructed while the through image display processing is being repeatedly executed by the through image display means, First While it is determined that execution of the predetermined image processing is instructed by the cutting means, the first image processing is sequentially performed using the captured image obtained by sequentially capturing the image by the imaging means as the first original image. First control to be executed and to display the second original image sequentially generated by the first image processing corresponding to each captured image on the screen by the through image display means instead of the captured image It is characterized by functioning as a means .

According to the present invention , the reduction unit reduces the original image captured by the imaging unit, the feature point detection unit detects the position of the feature point based on the reduced reduced image, and the detected feature point Since the image with the predetermined image processing using the position information is generated on the original image, the position information of the feature points can be obtained in a short time even if the processing performance is relatively low. While the predetermined image processing that is used can be performed , and the through image display processing for displaying the captured image obtained by imaging by the imaging means on the screen is repeatedly executed at a predetermined cycle, the cross filter even if the execution of the predetermined image processing, such as effect is instructed, when it is possible to display on the display unit as a through image by performing predetermined image processing such as cross filter effect in real time Cormorants advantages are obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

A. First embodiment A-1. Configuration of First Embodiment FIG. 1 is a block diagram showing a configuration of a digital camera 1 according to the first embodiment. The image acquisition unit 10 includes a lens 11, a shutter 12, and an LPF 13. The lens 11 is a normal optical lens and includes a lens group in which aspherical lenses are stacked. The shutter 12 is a so-called mechanical shutter that is operated by the driver 14 driven by the control unit 20 when the shutter button 271 is operated. Depending on the digital camera, a mechanical shutter may not be provided. In the case of a model equipped with a retractable lens structure and a mechanical zoom, these drivers are also controlled by the driver 14. The LPF 13 is a crystal low-pass filter and is mounted to prevent the occurrence of moire.

  Next, the analog signal processing unit 15 includes an image sensor (CCD, CMOS) 16, a sampling / signal amplification processing unit 17, and an A / D converter 18. The imaging sensor 16 forms a subject image (image), and converts the intensity of light of each color of RGB into a current value. The sampling / signal amplification processing unit 17 performs correlated double sampling processing and signal amplification processing for suppressing noise and color unevenness. The A / D converter 18 is also called an analog front end, and converts the sampled / amplified analog signal into a digital signal (converts each color of RGB and CMYG into 12-bit data and outputs it to the bus line).

  Next, the control unit (CPU) 20 controls the entire digital camera 1 (imaging device) according to a program stored in a program memory described later. The preview engine 22 is stored in the image buffer 26 immediately after detection of digital data input via the image acquisition unit 10 or the analog signal processing unit 15 in the recording mode (also referred to as recording mode or photographing mode) or immediately after the shutter operation is detected. Thinning processing is performed in order to display the digital data and the digital data stored in the image memory 31 on the display unit 25.

  The D / A converter 23 converts the digital data thinned out by the preview engine 22 and outputs it to the driver 24 at the subsequent stage. The driver 24 includes a buffer area for temporarily storing digital data displayed on the display unit 25 at the subsequent stage, and drives the display unit 25 based on a control signal input via the key operation unit 27 and the control unit 20. The display unit 25 includes a color TFT liquid crystal, an STN liquid crystal, or the like, and displays a preview image, image data after shooting, a setting menu, and the like.

  The image buffer 26 temporarily stores digital data immediately after photographing until it is input via the analog signal processing unit 15 or the digital signal processing unit 28 and passed to the digital signal processing unit 28. The key operation unit 27 includes a shutter button, a recording / playback mode selection slide switch, a menu button, a cross key (determined by pressing the center), and the like.

  The digital signal processing unit 28 performs white balance processing, color processing, gradation processing, contour emphasis, RGB format on digital data (uncompressed image data: BAYER) input via the analog signal processing unit 15. To YUV format, and YUV format to JPEG format. The digital signal processing unit 28 also generates an image file according to the Exif standard from the image data captured by the image acquisition unit 10 and the analog signal processing unit 15. The image compression / decompression processing unit 29 compresses and encodes the digital data (uncompressed image data: BAYER) input via the digital signal processing unit 28 into the JPEG format, and in the playback mode, the JPEG format file is encoded. Or stretch.

  The program memory 30 stores various programs loaded in the control unit 20, EV values in the best shot function, color correction information, and the like. The image memory 31 stores digital data converted into various file formats. The card I / F 32 controls data exchange between the external recording medium 33 and the imaging apparatus main body. The external recording medium 33 is a detachable recording medium composed of a compact flash (registered trademark), a memory stick, an SD card, or the like. The external connection I / F 34 includes a USB connector slot and the like, is connected to a personal computer or the like, and is used for transferring photographed image data.

  Next, FIG. 2 is a conceptual diagram showing a data configuration of the image memory 31 of the digital camera 1 according to the first embodiment. In the figure, a preview image (YUV) 261 is original image data temporarily generated to create a preview image (JPEG) 263. The thumbnail YUV 262 is original image data that is temporarily generated to create a thumbnail image (JPEG) 264. The preview image (JPEG) 263 is image data created from the preview image (YUV) 261 and created for previewing the image after saving. The thumbnail image (JPEG) 264 is image data created from the thumbnail image (YUV) 262.

  The main image (JPEG) 265 is full-size image data that is finally stored. The first reduced image (YUV) 266 is image data used for detecting a bright spot. The second reduced image (YUV) 267 is image data in which a cross image is drawn. The enlarged image (YUV) 268 is image data obtained by enlarging the second reduced image (YUV) 267 to the size of the original image (YUV) 270. The original image (BAYER) 269 is image data captured by the imaging sensor 16. The original image (YUV) 270 is image data obtained by converting the original image (BAYER) into the YUV format.

A-1. Operation of First Embodiment Next, the operation of the first embodiment described above will be described. Here, FIG. 3 is a flowchart for explaining the operation of the digital camera 1 according to the first embodiment. In the following description, an example of image processing that detects a bright spot of a captured image and adds a cross filter effect to the bright spot will be described.

  First, when an image is taken, an original image (BAYER) 269 is generated and stored in the image memory 31 (step S10). Next, it is determined whether or not to apply a cross filter effect (step S12). Whether or not to apply the cross filter effect can be selected by the user before photographing. When the cross filter effect is not applied, that is, in the normal shooting mode, the code amount is predicted for the original image (BAYER) 269 and a preview image (YUV) 261 is generated to generate an image memory. 31 is temporarily stored (step S14).

  Next, a preview image (JPEG) 263 is generated based on the preview image (YUV) 261 and stored in the image memory 31 (step S16). Further, the thumbnail image (YUV) 262 is generated by reducing the preview image (YUV) 261, and is temporarily stored in the image memory 31 (step S18). Next, a thumbnail image (JPEG) 264 is generated based on the thumbnail image (YUV) 262 and stored in the image memory 31 (step S20), and the main image (full size: JPEG) is generated based on the original image (BAYER) 269. ) 265 is generated and overwritten and saved in the preview image (YUV) 261 and the thumbnail image (YUV) 262 in the image memory 31 (step S22).

  On the other hand, if it is selected to apply the cross filter effect, first, initial setting is performed (step S24). FIG. 4 is a flowchart for explaining the initial setting operation. In the initial setting, first, the reduction ratio of the first reduced image (YUV) 266 for detecting the bright spot according to the image size of the original image (BAYER) 269 is set (step S40), and the original image (BAYER) 269 is set. The reduction ratio of the first reduced image (YUV) 266 is set according to the image quality of the first image (step S42), and the enlargement algorithm for the enlarged image (YUV) is set according to the image quality of the final original image (JPEG) 265. Change (step S44).

  When the initial setting is completed, the original image (BAYER) 269 is converted into a YUV format original image (YUV) 270, and is overwritten and saved in the original image (BAYER) 269 (step S26). The first reduced image (YUV) 266 is created and stored in the image memory 31 (step S28), and a bright spot is detected from the first reduced image (YUV) 266 (step S30). . Details of the bright spot detection procedure will be described later. In the first embodiment, since bright spots are detected from the first reduced image 266, the number of pixels to be checked as to whether or not they are bright spots is small. Therefore, a bright spot can be detected in a short time.

  When a bright spot is detected from the first reduced image (YUV) 266, a second reduced image (YUV) 267 in which a cross image is drawn on the coordinates of the bright spot is created and stored in the image memory 31 ( Step S32). Next, the second reduced image (YUV) 267 on which the cross image is drawn is enlarged to the same size as the original image (YUV) 270 and stored in the image memory 31 as an enlarged image (YUV) 268 (step S34). Next, the original image (YUV) 270 and the enlarged image (YUV) 268 on which the cross image is drawn are combined, and the combined image is overwritten and saved in the image memory 31 as the original image (YUV) 270 (step S36). .

  Next, code amount prediction is performed on the original image (YUV) 270 to which the cross filter effect is applied, and a preview image (YUV) 261 is generated and temporarily stored in the image memory 31 (step S38). Next, similarly to the normal shooting, a preview image (JPEG) 263 is generated based on the preview image (YUV) 261 and stored in the image memory 31 (step S16). Further, the thumbnail image (YUV) 262 is generated by reducing the preview image (YUV) 261, and is temporarily stored in the image memory 31 (step S18).

  Next, a thumbnail image (JPEG) 264 is generated based on the thumbnail image (YUV) 262 and stored in the image memory 31 (step S20). Based on the original image (YUV) 270 on which the cross image is drawn, An image (JPEG) 265 is generated and overwritten and saved on the preview image (YUV) 261 and thumbnail image (YUV) 262 in the image memory 31 (step S22). Of the data stored in the image memory 31, the preview image (JPEG) 263, the thumbnail image (JPEG) 264, and the main image (JPEG) 265 are converted into, for example, an image file according to the Exif standard by the digital signal processing unit 28. And transferred to the external recording medium 33 and stored.

  Next, the bright spot detection process described above will be described. Here, FIG. 5 is a flowchart for explaining the bright spot detection processing by the digital camera of the first embodiment. In the bright spot detection process, first, a bright spot threshold is set and a bright spot group number is set (step S50). In the first embodiment, the bright spot pixels adjacent in the horizontal direction are recognized as one bright spot group, and numbers are assigned in order of 1, 2,... Next, based on the first reduced image (YUV) 266, it is determined whether each pixel is a pixel having a luminance greater than the threshold value, that is, a bright spot, for each pixel (step S52). ). If it is determined that the pixel of interest is a bright spot, it is determined whether the pixel adjacent to the left of the pixel (the pixel checked immediately before) is also a bright spot (step S54). If the pixel on the left is not a bright spot, the process proceeds to step S62.

  If the pixel of interest is not a bright spot, it is determined whether the pixel adjacent to the left of the pixel (the pixel checked immediately before) is a bright spot (step S58). If the pixel on the left is not a bright spot, the process proceeds directly to the next step S62.

  Next, it is determined whether or not one line has been completed (step S62). If not completed, the process returns to step S52, and the above-described processing is repeated for the next pixel.

  If the target pixel is a bright spot and the pixel on the left side is also a bright spot, the pixel on the left side is set as the start point of the bright spot group (step S56). If the target pixel is not a bright spot but the image on the left is a bright spot, the pixel on the left is the end point of the bright spot group (step S60). From the start point to the end point of the bright spot is one group of bright spots in one line. When the process for one line is completed, it is determined whether or not the process for all lines is completed (step S64). If not completed, the process returns to step S52, and the above process is repeated for the next line. Do. Through the above processing, the start point and end point of the detected bright spot group are obtained for each line.

  When the bright spot detection is completed for all the lines, the groups adjacent in the vertical direction are integrated (step S66). Specifically, as shown in FIG. 6A, the first bright spot group (with group number “1”) and the second bright spot group (group number “2”) are assigned to the nth line. ”And the third bright spot group (with group number“ 3 ”) and fourth bright spot group (with group number“ 4 ”) are added to the (n + 1) th line. Is detected). In the integration of groups adjacent in the vertical direction, if bright spots are adjacent in the vertical direction, they are combined as one group.

  The first bright spot group on the n-th line shown in FIG. 6A is adjacent to the third bright spot group on the n + 1-th line below, and the second bright spot group on the n-th line is It is partially adjacent to the fourth bright spot group on the n + 1th line below. Therefore, as shown in FIG. 6B, each is integrated as one group, and is integrated into the first bright spot group and the second bright spot group.

  When the groups are integrated, the vertical size, horizontal size, and center position of each group are then updated (step S68). It is determined whether or not all groups have been checked (step S70). If not, the process returns to step S66, the above-described processing is performed on the next bright spot group, and group integration is repeated. Then, when the check (integration) for all the groups is finished, the processing is finished.

  In the above-described first embodiment, it has been described that the first reduced image (YUV) 266 is scanned to detect a bright spot, and a cross image is drawn on the detected bright spot. The shape, size, color, etc. of the cross image may be changed according to the size (the number of pixels constituting the bright spot, that is, the area). 7 to 9 are schematic diagrams illustrating examples of various cross images.

  FIGS. 7A to 7C show a state where a cross (basic shape), a radial shape, and a star shape are drawn as a cross image on a bright spot, but any other figure may be drawn. May be. 8A to 8C show how the cross image is changed according to the size of the bright spot. FIG. 9 shows how the bright spot and the cross image are deformed independently in the horizontal and vertical directions. In addition, the figure of a cross image is not limited to a star shape. Further, FIGS. 10A to 10C show how the colors of the bright spot and the cross image are changed in accordance with the size of the bright spot.

  According to the first embodiment described above, the first reduced image is generated from the original image immediately after shooting, the bright spot is detected from the first reduced image, and the second image is drawn on the bright spot. Since the second reduced image is enlarged and then synthesized with the original image, an image with a cross filter effect can be created in a relatively short time. For this reason, it is possible to mount a cross filter function even in a device having a high processing performance. In addition, the waiting time until the next shooting can be shortened, and the operability can be improved.

B. Second Embodiment Next, a second embodiment of the present invention will be described. As described above, the present invention has been described as image processing after photographing, but image processing including a cross filter effect can be performed in a short time. Therefore, the second embodiment is characterized in that an image captured from the image sensor 16 is subjected to image processing such as a cross filter effect in real time and is displayed on the display unit 25 as a through image. The configuration of the digital camera 1 is the same as that shown in FIG.

  FIG. 11 is a flowchart for explaining the operation of the digital camera according to the second embodiment. First, the imaging module (the image acquisition unit 10 and the analog signal processing unit 15) is activated to generate an original image (BAYER) 269 thinned out from the imaging module (step S100). Next, reduction processing is performed to create a through image (step S102), and it is determined whether or not to apply a cross filter effect (step S104).

  When the cross filter effect is not applied, that is, in the normal shooting mode, the through image is displayed on the display unit 25 by the preview engine 22 (step S106). Next, it is determined whether or not the shutter has been pressed (step S108). If not, the process returns to step S100 to repeatedly execute the above-described operation. On the other hand, when the shutter is pressed, the process proceeds to the flowchart shown in FIG. 2 described in the first embodiment.

  On the other hand, when the application of the cross filter effect is selected, first, the above-described initial setting is performed (step S110). When the initial setting is completed, the through image is converted into the YUV format (step S112) and reduced. Processing is performed to create a first reduced image (YUV) 266 (step S114), and a bright spot is detected from the first reduced image (YUV) 266 (step S116). When a bright spot is detected from the first reduced image (YUV) 266, a cross image is drawn on the coordinates of the bright spot and stored in the image memory 31 as the second reduced image (YUV) 267 (step S118). ).

  Next, the second reduced image (YUV) 267 on which the cross image is drawn is enlarged to the same size as the through image (YUV) (step S120), and the enlarged image (YUV) and the cross image on which the cross image is drawn ( YUV) 268 is synthesized (step S122). Next, the synthesized through image is displayed on the display unit 25 through the preview engine 22 (step S106), and it is determined whether or not the shutter is pressed (step S108). If not, the process returns to step S100. The above-described operation is repeatedly executed. On the other hand, when the shutter is pressed, the process proceeds to the flowchart shown in FIG. 2 described in the first embodiment.

  According to the second embodiment described above, it is possible to provide a cross filter effect in a short time by detecting a bright spot based on the reduced first reduced image and drawing a cross image. An image captured from the image sensor 16 can be subjected to image processing such as a cross filter effect in real time and displayed on the display unit 25 as a through image. Thereby, it is possible to easily know what kind of effect can be obtained even before photographing, and it is possible to reduce photographing mistakes and unintended photographing.

  In the first or second embodiment described above, only the cross filter effect has been described. However, the present invention is not limited to this. For example, the contour enhancement effect, the lens flare effect, the halo effect, the flashlight effect, the embossing effect, and the tile effect. Alternatively, image processing for adding a ripple effect or the like may be performed. For example, in the above contour emphasis effect, a contour portion is detected based on the first reduced image, a second reduced image subjected to image processing for enhancing the detected contour portion is created, and the second reduced image is What is necessary is just to enlarge and synthesize | combine with the original image.

1 is a block diagram illustrating a configuration of a digital camera 1 according to a first embodiment of the present invention. It is a conceptual diagram which shows the data structure of the image memory 31 of the digital camera by this 1st Embodiment. 4 is a flowchart for explaining the operation of the mobile phone 1 according to the first embodiment. It is a flowchart for demonstrating the operation | movement of the initial setting by the digital camera of this 1st Embodiment. It is a flowchart for demonstrating the bright spot detection process by the digital camera of the 1st embodiment. It is a conceptual diagram for demonstrating the principle of the bright spot detection by the digital camera of this 1st Embodiment. It is a schematic diagram which shows the example which draws a cross (basic form), radial form, and star shape as a cross image on a luminescent point in the imaging device by this 1st Embodiment. It is a schematic diagram which shows the example which changes a cross image according to the magnitude | size of a bright spot in the imaging device by this 1st Embodiment. It is a schematic diagram which shows the example which transforms a bright spot and a cross image independently in horizontal and vertical in the imaging device by this 1st Embodiment. It is a schematic diagram which shows the example which changes the magnitude | size of cross image itself according to the magnitude | size of a bright spot in the imaging device by this 1st Embodiment. It is a flowchart for demonstrating operation | movement of 2nd Embodiment of this invention.

Explanation of symbols

10 Image Acquisition Unit 11 Lens 12 Shutter 13 LPF
14 Driver 15 Analog Signal Processing Unit 16 Imaging Sensor (Imaging Means)
17 Sampling / Signal Amplification Processing Unit 18 A / D Converter 20 Control Unit 22 Preview Engine 23 D / A Converter 24 Driver 25 Display Unit 26 Image Buffer 27 Key Operation Unit 28 Digital Signal Processing Unit (Reduction Unit, Feature Point Detection Unit, Image Processing means, enlargement means, synthesis means)
29 Image compression / decompression processing unit 30 Program memory 31 Image memory 32 Card I / F
33 External recording medium 34 External connection I / F

Claims (17)

Imaging means;
Reducing the first original image designated, to detect the position of the predetermined feature point on the basis of the first reduced image obtained in this reduced, using the position information of the feature points detected predetermined First image processing means for executing a first image processing for generating a second original image in a state where the image processing is applied to the first original image;
Through image display means for repeatedly executing a through image display process for displaying a captured image obtained by imaging by the imaging means on a screen at a predetermined cycle;
First determination means for sequentially determining whether execution of the predetermined image processing is instructed while the through image display processing is being repeatedly executed by the through image display means;
While it is determined that the execution of the predetermined image processing is instructed by the first determination unit, a captured image obtained by sequentially imaging by the imaging unit is used as the first original image as the first original image. Image processing is sequentially executed, and the second original image sequentially generated by the first image processing corresponding to each captured image is displayed on the screen by the through image display means instead of the captured image. First control means;
An imaging apparatus comprising: The first image processing means, the first reduced image to generate a second reduced image by performing predetermined image processing as target, the second reduced image of the first of the generated The imaging apparatus according to claim 1, wherein the second original image in a state where the predetermined image processing is performed on the first original image is generated by combining the original image with the original image. . The first image processing means, by combining the second reduced image on the first original image while enlarging the same angle as the first original image, said predetermined image processing is the first The imaging apparatus according to claim 2, wherein the second original image in a state applied to one original image is generated. Shooting record determination means for sequentially determining whether shooting recording is instructed while the through image display processing is repeatedly executed by the through image display means;
Shooting recording means for recording a shot image obtained by imaging by the imaging means when shooting recording is instructed by the shooting record determining means;
Second determination means for determining whether or not execution of the predetermined image processing is instructed when imaging recording is instructed by the imaging record determination means;
When it is determined by the second determination means that execution of the predetermined image processing is instructed, the first image is taken as the first original image, which is a captured image obtained by imaging by the imaging means. Second control means for executing processing, and recording the second original image generated by the first image processing by the photographing recording means instead of the photographed image;
The imaging apparatus according to claim 1, further comprising: A compression unit that compresses a captured image obtained by imaging by the imaging unit to generate a compressed image;
The photographing recording means records a compressed image after being compressed by the compression means,
The imaging apparatus according to claim 4, wherein the first image processing unit performs the first image processing on a captured image before being compressed by the compression unit. The through image display means generates a display image by reducing a captured image obtained by imaging by the imaging means for display, and displays the generated display image on a screen.
The second control unit causes the first image processing to be performed by using the captured image obtained by imaging by the imaging unit as the first original image, and the first control unit performs imaging by the imaging unit. 6. The imaging apparatus according to claim 4, wherein the first image processing is executed by using the display image obtained by reducing the captured image obtained for display as the first original image. The first image processing means groups consecutive pixels having a feature amount equal to or greater than a predetermined threshold for each horizontal line of the first reduced image obtained by the reduction, and groups them in all horizontal lines. The imaging apparatus according to claim 1, wherein after performing the above, groups adjacent in the vertical direction are combined into one feature point. The imaging apparatus according to claim 1, wherein the first image processing unit draws an arbitrary image at a position of a feature point. 9. The imaging apparatus according to claim 8, wherein the first image processing means draws a radially expanding image at the center of the feature point. The imaging apparatus according to claim 8, wherein the first image processing unit draws an image including a curve at a position of a feature point. 9. The image pickup apparatus according to claim 8, wherein the first image processing means draws an image scaled based on the size of the feature point at the position of the feature point. 9. The first image processing means draws an independently enlarged / reduced image at a position of a feature point based on a horizontal length and a vertical length of the feature point. Imaging device. 9. The imaging apparatus according to claim 8, wherein the first image processing unit draws an image of a different color at the position of the feature point based on the size of the feature point. The first image processing means, characterized in that said reduced detects the position of the bright spot based on the first reduced image obtained, to draw an arbitrary image on the position of the detected bright spot An imaging apparatus according to any one of claims 1 to 8. The first image processing means, according to claim, wherein the reduced detect the position of the outline portion based on the first reduced image obtained, characterized in that it emphasizes the position of the detected contour portion The imaging device according to any one of 1 to 8. The specified first original image is reduced, the position of the predetermined feature point is detected based on the first reduced image obtained by the reduction, and the predetermined feature point position information is used. A method for controlling an imaging apparatus including a first image processing unit that executes a first image process for generating a second original image in a state where the first image process is performed on the first original image. There,
A through image display step of repeatedly executing a through image display process for displaying a captured image obtained by imaging by an imaging unit on a screen;
A first determination step of sequentially determining whether or not execution of the predetermined image processing is instructed while the through image display processing is being repeatedly executed in the through image display step;
While it is determined that the execution of the predetermined image processing is instructed in the first determination step, a captured image obtained by sequentially capturing images by the imaging unit is used as the first original image as the first original image. Image processing is sequentially performed, and the second original image sequentially generated by the first image processing corresponding to each captured image is displayed on the screen by the through image display step instead of the captured image. A first control step;
An image effect imparting method comprising: A computer of an imaging apparatus having an imaging means
The specified first original image is reduced, the position of the predetermined feature point is detected based on the first reduced image obtained by the reduction, and the predetermined feature point position information is used. First image processing means for executing a first image processing for generating a second original image in a state where the image processing is applied to the first original image;
Through image display means for repeatedly executing a through image display process for displaying a captured image obtained by imaging by the imaging means on a screen at a predetermined cycle;
First determination means for sequentially determining whether execution of the predetermined image processing is instructed while the through image display processing is being repeatedly executed by the through image display means;
While it is determined that the execution of the predetermined image processing is instructed by the first determination unit, a captured image obtained by sequentially imaging by the imaging unit is used as the first original image as the first original image. Image processing is sequentially executed, and the second original image sequentially generated by the first image processing corresponding to each captured image is displayed on the screen by the through image display means instead of the captured image. First control means;
An image effect providing program characterized by causing the function to function.

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