Image capturing apparatus providing image blur information and method thereof
First Claim
1. An image capturing apparatus providing image blur information at a shooting mode of which a shooting shutter speed is greater than a safe shutter speed, comprising:
- an image capturing unit, for receiving a shooting signal to capture a first image at the shooting shutter speed and a second image at a shutter speed less than the safety shutter speed;
a processing unit, for generating the shooting signal, and receiving the first image and the second image, then search for a plurality of relative characteristic positions between the first image and the second image, in order to use the second image as relative reference to the first image'"'"'s characteristic positions so a compared result can be generated, furthermore an operation is done to define degree of image blur according to the comparison result; and
a display connected to the processing unit to display the first image and information about the degree of image blur.
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Abstract
A method for providing image blur information is applied to a photographing mode of image capturing apparatus of which a shooting shutter speed is greater than a safe shutter speed, the method comprising the steps of: capturing a long exposure image in the shooting shutter speed and a short exposure image which is smaller than or equal to the safe shutter speed, in order to search correspondingly a plurality of characteristic positions in the long exposure image and the short exposure image, and then comparing the characteristics on the relative characteristic positions between the long exposure image and the short exposure image to produce a comparing result upon which a further operation is performed to define a degree of image blur. Thus, the present invention can achieve the purpose of providing image blur information for the long exposure image when the image capturing apparatus captures the long exposure image.
20 Citations
16 Claims
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1. An image capturing apparatus providing image blur information at a shooting mode of which a shooting shutter speed is greater than a safe shutter speed, comprising:
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an image capturing unit, for receiving a shooting signal to capture a first image at the shooting shutter speed and a second image at a shutter speed less than the safety shutter speed; a processing unit, for generating the shooting signal, and receiving the first image and the second image, then search for a plurality of relative characteristic positions between the first image and the second image, in order to use the second image as relative reference to the first image'"'"'s characteristic positions so a compared result can be generated, furthermore an operation is done to define degree of image blur according to the comparison result; and a display connected to the processing unit to display the first image and information about the degree of image blur. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for providing image blur information, being applied to the image capturing apparatus at the shooting mode of which the shooting shutter speed is greater than the safe shutter speed, comprising steps of:
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capturing a first image at the shooting shutter speed and a second image at a shutter speed less than the safe shutter speed; searching multiple characteristic positions corresponding between the first image and the second images; using the characteristic positions correspondingly between the first image and the second image to perform a comparison, in order to use the second image as a relative reference to the first image'"'"'s characteristic positions so a compared result can be generated; and using the comparison result to operate and define the degree of image blur; then, the image capturing apparatus providing the degree of image blur information about the first image. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification