Image signal processing method, image signal processor, and electronic device
An electronic device according to an embodiment of the present disclosure comprises: an image sensor for generating image data on the basis of incident light; and a plurality of image processing blocks (IP blocks), and may comprise an image signal processor (ISP) for processing the image data. The image signal processor may set a first processing path and a second processing path by at least one IP block among the plurality of image processing blocks on the basis of designated control information, divide the image data into first image data and second image data when the image data is received, process the first image data by using a first group image processing block on the first processing path, and process the second image data by using a second group image processing block on the second processing path. Various other embodiments understood from the specification are also possible.
1. An electronic device comprising:
an image sensor configured to generate image data based on light that is incident; and
an image signal processor (ISP) including a plurality of image processing (IP) blocks and configured to process the image data,
wherein the ISP is further configured to:
establish a first processing chain by selecting at least one IP block of the plurality of IP blocks based on specified control information comprising information on enabling/disabling a specific image effect,
establish a second processing chain by selecting at least one other IP block of the plurality of IP blocks based on the specified control information,
divide the image data into first image data and second image data, when receiving the image data,
process the first image data by using a first group of IP blocks on the first processing chain, and
process the second image data by using a second group of IP blocks on the second processing chain, and
wherein the ISP is further configured to divide the image data into the first image data and the second image data based on depth information of the image data.
2. The electronic device of claim 1 , wherein the first image data includes data, which is associated with an on-focused subject of the image data.
3. The electronic device of claim 2 , wherein the second image data includes remaining data of the image data other than data associated with the on-focused subject.
4. The electronic device of claim 1 , wherein the plurality of IP blocks include at least one of a preset IP block, an IP block for color interpolation, an IP block for lens shading correction, an IP block for an auto-white balance, an IP block for chromatic aberration correction, an IP block for optical inverse correction, an IP block for noise reduction, an IP block for edge enhancement, an IP block for gamma correction, an IP block for out of focus, or a combination thereof.
5. The electronic device of claim 1 , wherein the first group of IP blocks comprises at least one IP block selected from remaining IP blocks of the plurality of IP blocks other than a preset IP block and an IP block for out of focus based on the specified control information.
6. The electronic device of claim 1 , wherein the second group of IP blocks includes an IP block for out of focus.
7. The electronic device of claim 6 , wherein at least one of remaining IP blocks of the second group of IP blocks other than the IP block for out of focus is adjusted such that an IP intensity is lowered.
8. The electronic device of claim 1 ,
wherein the first processing chain is established to bypass remaining blocks other than a preset IP block and the first group of IP blocks, and
wherein the second processing chain is established to bypass remaining blocks other than the preset IP block and the second group of IP blocks.
9. The electronic device of claim 1 , wherein one or more IP blocks of the plurality of IP blocks are included in the first group of IP blocks and the second group of IP blocks.
10. An image signal processor (ISP) comprising:
a plurality of image processing (IP) blocks; and
a controller configured to:
establish a first processing chain by selecting at least one IP block of the plurality of IP blocks based on specified control information comprising information on enabling/disabling a specific image effect, and
establish a second processing chain by selecting at least one other IP block of the plurality of IP blocks based on the specified control information,
wherein, when image data generated by an image sensor is received, a preset IP block divides the image data into first image data and second image data,
wherein a first group of IP blocks processes the first image data along the first processing chain established by the controller,
wherein a second group of IP blocks processes the second image data along the second processing chain established by the controller, and
wherein the preset IP block is configured to distinguish between the first image data and the second image data by using depth information of the image data.
11. The image signal processor of claim 10 ,
wherein the first image data includes data, which is associated with an on-focused subject, of the image data, and
wherein the second image data includes remaining data of the image data other than the data associated with the on-focused subject.
12. The image signal processor of claim 10 ,
wherein the first group of IP blocks includes at least one IP block selected from remaining IP blocks of the plurality of IP blocks other than the preset IP block and an IP block for out of focus based on the specified control information, and
wherein the second group of IP blocks includes the IP block for out of focus.
13. The image signal processor of claim 10 ,
wherein the first processing chain bypasses remaining blocks other than the preset IP block and the first group of IP blocks, and
wherein the second processing chain bypasses remaining blocks other than the preset IP block and the second group of IP blocks.
14. The electronic device of claim 1 , where an excluded IP block of the plurality of IP blocks is excluded from the first processing chain and the second processing chain.