1. An image analyzing apparatus comprising a computer, the computer programmed to:
obtain a motion vector from a first image toward a second image;
calculate an evaluation value depending on a magnitude of frequency components, the frequency components having higher frequency than a first frequency determined based on the motion vector; and
detect a particular area of the first image based on the evaluation value.
2. The apparatus according to claim 1, wherein the first frequency becomes lower as the motion vector becomes larger in magnitude.
3. The apparatus according to claim 1, wherein the computer is further programmed to obtain a third image by attenuating the frequency components of the first image having higher frequency than the first frequency, and to calculate the evaluation value based on differences between pixel values of the first image and the third image.
4. The apparatus according to claim 3, wherein the attenuating is performed by applying a low-pass filter to the first image, the low-pass filter using the first frequency as a cutoff frequency.
5. The apparatus according to claim 1, wherein the computer is further programmed to obtain a fourth image by attenuating the frequency components of the first image having lower frequency than the first frequency, and to calculate the evaluation value based on the fourth image.
6. The apparatus according to claim 5, wherein the attenuating is performed by applying a high-pass filter to the first image, the high-pass filter using the first frequency as a cutoff frequency.
7. The apparatus according to claim 1, wherein the evaluation value is higher as the frequency components having higher frequency than a first frequency become larger, and the particular area includes one or more pixels having a higher evaluation value than a threshold value.
8. The apparatus according to claim 1, wherein the computer is further programmed to carry out sharpening for the first image, the sharpening for the particular area being weaker than the sharpening for another area of the first image.
9. The apparatus according to claim 8, wherein the sharpening is carried out so as to suppress an increase in a difference between a pixel value of the first image and a pixel value of the sharpened image.
10. The apparatus according to claim 8 further comprising a screen displaying an image obtained by carrying out the sharpening for the first image.
11. An image analyzing method, comprising:
obtaining a motion vector from a first image toward a second image;
calculating an evaluation value based on a difference between the first image and a second image, the second image being obtained by applying a filter to the first image, the filter having a cutoff frequency determined based on the motion vector; and
detecting a particular area of the first image based on the evaluation value.
12. The method according to claim 11, wherein the cutoff frequency becomes lower as the motion vector becomes larger in magnitude.
13. The method according to claim 11, wherein the second image is obtained by attenuating frequency components of the first image having a higher frequency than the cutoff frequency by using the filter.
14. The method according to claim 13, including providing the filter as a low-pass filter.
15. The method according to claim 11, wherein the second image is obtained by attenuating frequency components of the first input image having a lower frequency than the cutoff frequency by using the filter.
16. The method according to claim 15, including providing the filter as the high-pass filter.
17. The method according to claim 11, wherein the evaluation value is higher as the frequency components having higher frequency than the cutoff frequency become larger, and the particular area includes one or more pixels having a higher evaluation value than a threshold value.
18. The method according to claim 11 further comprising carrying out sharpening for the first image, the sharpening for the particular area being weaker than the sharpening for another area of the first image.
19. The method according to claim 18, wherein the sharpening is carried out so as to suppress an increase in a difference between a pixel value of the first image and a pixel value of the sharpened image.
20. The method according to claim 18 further comprising displaying an image obtained by carrying out the sharpening for the first image on a screen.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An image controlling apparatus, comprising:
a plurality of pad type operating devices;
a plurality of image storage devices, each of which stores arbitrary image data corresponding to each one of the pad type operating devices;
an operation detector that detects an operation of one of the plurality of pad type operating devices;
a reading device that reads image data from one of the plurality of image storage devices corresponding to the pad type operating device of which operation is detected;
an image generator that generates an image signal by processing the read image data;
a video inputting device that inputs a video signal;
a recording instruction device that instructs starting and ending of recording the video signal input by the video inputting device;
a selector that selects one of the plurality of image storage devices; and
a recorder that records image data based on the video signal from starting of recording is instructed to the ending the recording is instructed by the recording instruction device into said one of the plurality of image storage devices selected by the selector.
2. The image controlling apparatus according to claim 1, further comprising:
a data storage device that stores the image data stored in the plurality of image storage devices; and
a data transfer device that reads the image data stored in the plurality of image storage devices to store the image data into the data storage device.
3. The image controlling apparatus according to claim 1, wherein the image generator generates an image signal added with a predetermined image effect.
4. The image controlling apparatus according to claim 1, wherein each one of the plurality of image storage devices is assigned to each one of the plurality of pad type operating devices.
5. The image controlling apparatus according to claim 1, further comprising
an event data inputting device that inputs event data; and wherein
the plurality of image storage devices store arbitrary image data corresponding to each one of a plurality of event data; and
the reading device reads image data from one of the plurality of image storage devices corresponding to a type of the event data input by the event data inputting device
6. The image controlling apparatus according to claim 5, further comprising:
an event data generator that generates event data corresponding to the pad type operating device of which operation is detected, and
wherein the event data inputting device inputs the event data generated by the event data generator.
7. The image controlling apparatus according to claim 5, further comprising:
a receiver that receives an input signal from an external device; and
an event data detector that detects event data in the input signal received by the receiver, and
wherein the event data inputting device input the event data detected by the event data detector.
8. An image controlling apparatus, comprising:
a plurality of pad type operating devices;
a plurality of image storage devices, each of which stores arbitrary image data corresponding to each one of the pad type operating devices;
an operation detector that detects an operation of one of the plurality of pad type operating devices;
a reading device that reads image data from one of the plurality of image storage devices corresponding to the pad type operating device of which operation is detected;
an image generator that generates an image signal by processing the read image data;
a video inputting device that inputs a video signal;
a synthesized image generator that generates a synthesized image signal by synthesizing the video signal input by the video inputting device with the image signal generated by the image generator; and
an output device that outputs the synthesized image signal generated by the synthesized image generator.
9. The image controlling apparatus according to claim 8, further comprising:
a data storage device that stores the image data stored in the plurality of image storage devices; and
a data transfer device that reads the image data stored in the plurality of image storage devices to store the image data into the data storage device.
10. The image controlling apparatus according to claim 8, wherein the image generator generates an image signal added with a predetermined image effect.
11. The image controlling apparatus according to claim 8, wherein each one of the plurality of image storage devices is assigned to each one of the plurality of pad type operating devices.
12. The image controlling apparatus according to claim 8, further comprising an event data inputting device that inputs event data; and wherein
the plurality of image storage devices store arbitrary image data corresponding to each one of a plurality of event data; and
the reading device reads image data from one of the plurality of image storage devices corresponding to a type of the event data input by the event data inputting device.
13. The image controlling apparatus according to claim 12, further comprising:
an event data generator that generates event data corresponding to the pad type operating device of which operation is detected, and
wherein the event data inputting device inputs the event data generated by the event data generator.
14. The image controlling apparatus according to claim 12, further comprising:
a receiver that receives an input signal from an external device; and
an event data detector that detects event data in the input signal received by the receiver, and
wherein the event data inputting device input the event data detected by the event data detector.