Image processing method, image processing device and recording medium
An image processing method and an image processing device which can improve sharpness by producing a binocular rivalry intentionally are provided. An image processing device 100 includes a right eye image acquiring unit 101 which generates a right eye image by performing a correction processing on an input image, a left eye image acquiring unit 102 which generates a left eye image which produces a binocular rivalry with the right eye image by performing a correction processing which is different from the correction processing, and a multi-eye display unit which displays the right eye image and the left eye images to different viewpoints.
1. An image processing method comprising the steps of:
acquiring, by a right eye image acquiring means, a right eye image displayed to a right eye from an input image;
acquiring, by a left eye image acquiring means, a left eye image displayed to a left eye from the input image;
performing an image enhancement processing, by the right eye image acquiring means and/or the left eye image acquiring means, to enhance or de-enhance a predetermined bandwidth of the input image,
wherein, in the step of performing the image enhancement processing, a difference in an amount of enhancement between the right eye image and the left eye image is equal to or more than a perceptible limit, the perceptible limit being a limiting point where a difference of sharpness can be discriminated by perception, and the amount of enhancement is fluctuated with time.
2. The image processing method according to claim 1 , wherein the difference in the amount of enhancement between the right eye image and the left eye image is equal to or more than 0.1.
3. The image processing method according to claim 2 , wherein the difference in the amount of enhancement between the right eye image and the left eye image is equal to or less than 10.
4. The image processing method according to claim 3 , wherein the amount of enhancement between the right eye image and the left eye image is varied to produce binocular rivalry in the image enhancement processing.
5. The image processing method according to claim 1 , wherein, the step of image enhancement uses a filter indicated as follows, when C 1 , C 2 are constants, σ 1 is a parameter in a range from 0.5 to 5.0, and σ 2 is a parameter in a range from 0.0 to 1.0,
D
O
G
(
x
,
y
)
=
C
1
exp
(
x
2
+
y
2
2
π
σ
1
2
)
-
C
2
exp
(
x
2
+
y
2
2
πσ
2
2
)
.
6. The image processing method according to claim 1 , wherein an attention area specifying means that specifies an attention area in the input image performs the bandwidth enhancement processing or a black and white reversal only on the attention area.
7. The image processing method according to claim 1 , wherein a disparity in a horizontal direction is added to the one input image.
8. The image processing method according to claim 1 , wherein after performing the bandwidth enhancement processing of the input image, the right eye image and the left eye image are acquired by performing a luminance correction which enhances a contrast.
9. An image processing device comprising:
a right eye image acquiring means that acquires a right eye image displayed to a right eye from an input image; and
a left eye image acquiring means that acquires a left eye image displayed to a left eye from the input image,
wherein the right eye image acquiring means and/or the left eye image acquiring means perform an enhancement processing to enhance or de-enhance a predetermined bandwidth of the input image, and a difference in an amount of enhancement between the right eye image and the left eye image is set to be equal to or more than a perceptible limit, the perceptible limit being a limiting point where a difference of sharpness can be discriminated by perception, and the amount of enhancement of the bandwidth enhancement processing is fluctuated with time.
10. The image processing device according to claim 9 , wherein the difference in the amount of enhancement between the right eye image and the left eye image is equal to or more than 0.1.
11. The image processing device according to claim 10 , wherein the difference in the amount of enhancement between the right eye image and the left eye image is equal to or less than 10.
12. The image processing device according to claim 11 , wherein the right eye image acquiring means and the left eye image acquiring means make the amount of enhancement between the right eye image and the left eye image vary to produce binocular rivalry.
13. The image processing device according to claim 9 , wherein the right eye image acquiring means and the left eye image acquiring means use a filter indicated as follows, when C 1 , C 2 are constants, σ 1 is a parameter in a range from 0.5 to 5.0, and σ 2 is a parameter in a range from 0.0 to 1.0,
D
O
G
(
x
,
y
)
=
C
1
exp
(
x
2
+
y
2
2
π
σ
1
2
)
-
C
2
exp
(
x
2
+
y
2
2
πσ
2
2
)
.
14. The image processing device according to claim 9 further comprising:
an attention area specifying means that specifies an attention area in the input image,
wherein the attention area specifying means performs the bandwidth enhancement processing or a black and white reversal only on the attention area.
15. The image processing device according to claim 9 further comprising:
a disparity generation means that adds a disparity in a horizontal direction to the one input image.
16. The image processing device according to claim 9 , wherein the right eye image acquiring means and the left eye image acquiring means perform a luminance correction which enhances a contrast to acquire the right eye image and the left eye image, after performing a bandwidth enhancement processing of the input image.
17. An image processing method comprising the steps of:
acquiring, by one of a right eye image acquiring means and a left eye image acquiring means, an input image as a display image; and
acquiring, by the other of the right eye image acquiring means and the left eye image acquiring means, a display image by performing black and white reversal or color reversal of the input image that is acquired by the one of the right eye image acquiring means and the left eye image acquiring means.
18. An image processing device comprising:
a right eye image acquiring means that acquires a display image for a right eye to be displayed to the right eye, from an input image; and
a left eye image acquiring means that acquires a display image for a left eye to be displayed to the left eye, from the input image,
wherein one of the right eye image acquiring means and the left eye image acquiring means acquires the input image as the display image for the right eye or the left eye, respectively, and the other of the right eye image acquiring means and the left eye image acquiring means performs black and white reversal or color reversal of the input image to acquire a display image for the right eye or left eye, respectively.
19. A non-transitory computer readable medium storing a program for causing a computer to execute a predetermined operation, the program comprising the step of:
performing an image enhancement processing to enhance or de-enhance a predetermined bandwidth of a right eye image displayed to a right eye and a left eye image displayed to a left eye image from an input image,
wherein, in the step of performing the image enhancement processing, a difference in an amount of enhancement between the right eye image and the left eye image is set to be equal to or more than a perceptible limit, the perceptible limit being a limiting point where a difference of sharpness can be discriminated by perception, and the amount of enhancement of the bandwidth enhancement processing is fluctuated with time.
20. A non-transitory computer readable medium storing a program for causing a computer to execute a predetermined operation, the program
causing the computer to execute processing including:
acquiring, by one of a right eye image acquiring means and a left eye image acquiring means, an input image as a display image; and
acquiring, by the other of the right eye image acquiring means and the left eye image acquiring means, a display image by performing black and white reversal or color reversal of the input image acquired by the one of the right eye image acquiring means and the left eye image acquiring means.