Method and apparatus for processing data corresponding to fingerprint image

1. A method of processing data corresponding to a fingerprint image, the method comprising:

obtaining first image data corresponding to a group comprising a plurality of pixels; and

dividing the first image data into second image data corresponding to each of the plurality of pixels based on a plurality of weights corresponding to the plurality of pixels,

wherein the dividing comprises obtaining a value of the second image data by summing a combination of a value of the first image data with each of the plurality of weights corresponding to the plurality of pixels included in the group, and

wherein the plurality of weights are determined based on a plurality of mutual capacitances between driving electrodes and detection electrodes constituting the plurality of pixels.

2. The method of claim 1 , wherein the plurality of weights comprise a matrix of percentage values based on a combination of the plurality of mutual capacitances.

3. The method of claim 2 , wherein the matrix represent a distribution of the percentage values of the plurality of mutual capacitances based on a maximum value of a mutual capacitance among the plurality of mutual capacitances.

4. The method of claim 1 , wherein the obtaining comprises:

sequentially applying a driving signal to each of a plurality of driving electrodes included in the group; and

obtaining the first image data based on a plurality of electrical signals measured from a plurality of detection electrodes included in the group.

5. The method of claim 1 , further comprising:

determining a mutual capacitance at each of a plurality of nodes where each of a plurality of driving electrodes included in the group and each of a plurality of detection electrodes included in the group intersect.

6. The method of claim 5 , wherein the determining comprises:

determining a mutual capacitance in a second channel based on a mutual capacitance in a region comprising a first channel and the second channel,

wherein a fixed potential is applied to the first channel, and

wherein the second channel is adjacent to the first channel.

7. The method of claim 1 , further comprising generating the fingerprint image based on the second image data.

8. A non-transitory computer-readable recording medium having recorded thereon a computer program, which, when executed by a computer, performs the method of claim 1 .

9. A data processing apparatus comprising:

at least one processor configured to execute instructions in a computer program; and

at least one memory storing at least a part of the computer program,

wherein the at least one processor is further configured to obtain first image data corresponding to a group comprising a plurality of pixels and divide the first image data into second image data corresponding to each of the plurality of pixels based on a plurality of weights corresponding to the plurality of pixels, and

wherein the at least one processor is further configured to obtain a value of the second image data by summing a combination of a value of the first image data with each of the plurality of weights corresponding to the plurality of pixels included in the group, and

wherein the plurality of weights are determined based on a plurality of mutual capacitances between driving electrodes and detection electrodes constituting the plurality of pixels.

10. The data processing apparatus of claim 9 , wherein the plurality of weights comprise a matrix of percentage values corresponding to a combination of the plurality of mutual capacitances.

11. The data processing apparatus of claim 10 , wherein the matrix comprises a distribution of the percentage values of the plurality of mutual capacitances based on a maximum value of a mutual capacitance among the plurality of mutual capacitances.

12. The data processing apparatus of claim 9 , wherein the at least one processor is further configured to sequentially apply a driving signal to each of a plurality of driving electrodes included in the group, and obtain the first image data based on electrical signals measured from a plurality of detection electrodes included in the group.

13. The data processing apparatus of claim 9 , wherein the at least one processor is further configured to determine a mutual capacitance at each of a plurality of nodes where each of a plurality of driving electrodes included in the group and each of a plurality of detection electrodes included in the group intersect.

14. The data processing apparatus of claim 13 , wherein the at least one processor is further configured to determine a mutual capacitance in a second channel based on a mutual capacitance in a region comprising a first channel and the second channel, wherein a fixed potential is applied to the first channel, and the second channel is adjacent to the first channel.

15. The data processing apparatus of claim 9 , wherein the at least one processor is further configured to generate a fingerprint image based on the second image data.

16. A data processing apparatus comprising:

at least one processor configured to execute instructions in a computer program;

at least one memory storing at least a part of the computer program;

a transmission circuit configured to provide driving signal to a plurality of driving electrodes; and

a reception circuit configured to determine electric signals from a plurality of detection electrodes that cross the plurality of driving electrodes,

wherein the at least one processor is further configured to obtain first image data corresponding to a group comprising a plurality of pixels and divide the first image data into second image data corresponding to each of the plurality of pixels based on a plurality of weights corresponding to the plurality of pixels, and

wherein the at least one processor is further configured to obtain a value of the second image data by summing a combination of a value of the first image data with each of the plurality of weights corresponding to the plurality of pixels included in the group, and

wherein the plurality of weights are determined based on a plurality of mutual capacitances between driving electrodes and detection electrodes constituting the plurality of pixels.

17. The data processing apparatus of claim 16 , wherein the at least one processor is further configured to generate a fingerprint image based on the second image data.