Image processing apparatus and control method thereof

Abstract

The image processing apparatus includes a determination unit that determines whether a plurality of input images are a plurality of divided images or a plurality of independent images, an adding unit that adds a margin image to an edge portion of each input image, an image processing unit that performs image processing on the plurality of input images to each of which the margin image has been added when the plurality of input images are the plurality of divided images, and performs image processing on the plurality of images to each of which the margin image generated from another input image has not been added when the plurality of input images are the plurality of independent, and a synthesizing unit that generates one synthesized image by synthesizing the plurality of input images on which image processing has been performed by the image processing unit.

1 . An image processing apparatus, comprising:
 a determination unit that determines whether a plurality of input images are a plurality of divided images obtained by dividing one single constructed image, or a plurality of independent images which are respectively independent;   an adding unit that adds, to an edge portion of each input image, a margin image generated from an input image that is adjacent to that input image in the single constructed image when the plurality of input images are determined by the determination unit to be the plurality of divided images;   an image processing unit that performs image processing on the plurality of input images; and   a synthesizing unit that generates one synthesized image by synthesizing the plurality of input images on which image processing has been performed by the image processing unit,   wherein the image processing unit performs image processing on the plurality of input images to each of which the margin image has been added by the adding unit when the plurality of input images are determined by the determination unit to be the plurality of divided images, and performs image processing on the plurality of images to each of which the margin image generated from another input image has not been added when the plurality of input images are determined by the determination unit to be the plurality of independent images.   
     
     
         2 . The image processing apparatus according to  claim 1 ,
 wherein the determination unit determines, for each boundary portion between the input images upon arranging the plurality of input images in a predetermined order, whether a change in a pixel value between the input images is continuous, and determines whether the plurality of input images are the plurality of divided images or the plurality of independent images based on a determination result.   
     
     
         3 . The image processing apparatus according to  claim 1 ,
 wherein the image processing unit performs image processing on the plurality of input images to each of which the margin image has not been added when the plurality of input images are determined by the determination unit to be the plurality of independent images.   
     
     
         4 . The image processing apparatus according to  claim 1 ,
 wherein the adding unit adds, to an edge portion of each input image, a margin image generated from that input image when the plurality of input images are determined by the determination unit to be the plurality of independent images, and   the image processing unit performs image processing on the plurality of input images to each of which the margin image has been added by the adding unit.   
     
     
         5 . The image processing apparatus according to  claim 1 ,
 wherein the determination unit determines whether frame synchronizing signals of the plurality of input images are synchronized, and determines that the plurality of input images are the plurality of independent images when the frame synchronizing signals of the plurality of input images are not synchronized.   
     
     
         6 . The image processing apparatus according to  claim 1 , further comprising:
 a generation unit that generates the plurality of input images by dividing an image which was input,   wherein the determination unit determines whether the plurality of input images generated by the generation unit are a plurality of divided images or a plurality of independent images.   
     
     
         7 . The image processing apparatus according to  claim 1 , further comprising:
 an acquisition unit that acquires information showing whether the plurality of input images are the plurality of divided images or the plurality of independent images,   wherein the determination unit determines whether the plurality of input images are the plurality of divided images or the plurality of independent images by using the information acquired by the acquisition unit.   
     
     
         8 . A method of controlling an image processing apparatus, comprising:
 a determination step of determining whether a plurality of input images are a plurality of divided images obtained by dividing one single constructed image, or a plurality of independent images which are respectively independent;   an adding step of adding, to an edge portion of each input image, a margin image generated from an input image that is adjacent to the relevant input image in the single constructed image when the plurality of input images are determined in the determination step to be the plurality of divided images;   an image processing step of performing image processing on the plurality of input images; and   a synthesizing step of generating one synthesized image by synthesizing the plurality of input images on which image processing has been performed in the image processing step,   wherein, in the image processing step, image processing is performed on the plurality of input images to each of which the margin image has been added in the adding step when the plurality of input images are determined in the determination step to be the plurality of divided images, and image processing is performed on the plurality of images to each of which the margin image generated from another input image has not been added when the plurality of input images are determined in the determination step to be the plurality of independent images.   
     
     
         9 . The method of controlling an image processing apparatus according to  claim 8 ,
 wherein, in the determination step, for each boundary portion between the input images upon arranging the plurality of input images in a predetermined order, whether a change in a pixel value between the input images is continuous is determined, and whether the plurality of input images are the plurality of divided images or the plurality of independent images is determined based on a determination result.   
     
     
         10 . The method of controlling an image processing apparatus according to  claim 8 ,
 wherein, in the image processing step, image processing is performed on the plurality of input images to each of which the margin image has not been added when the plurality of input images are determined in the determination step to be the plurality of independent images.   
     
     
         11 . The method of controlling an image processing apparatus according to  claim 8 ,
 wherein, in the adding step, a margin image generated from each input image is added to an edge portion of that input image when the plurality of input images are determined in the determination step to be the plurality of independent images, and   in the image processing step, image processing is performed on the plurality of input images to each of which the margin image has been added in the adding step.   
     
     
         12 . The method of controlling an image processing apparatus according to  claim 8 ,
 wherein, in the determination step, it is determined whether frame synchronizing signals of the plurality of input images are synchronized, and the plurality of input images are determined to be the plurality of independent images when the frame synchronizing signals of the plurality of input images are not synchronized.   
     
     
         13 . The method of controlling an image processing apparatus according to  claim 8 , further comprising:
 a generation step of generating the plurality of input images by dividing an image which was input,   wherein, in the determination step, it is determined whether the plurality of input images generated by the generation unit are a plurality of divided images or a plurality of independent images.   
     
     
         14 . The method of controlling an image processing apparatus according to  claim 8 , further comprising:
 an acquisition step of acquiring information showing whether the plurality of input images are the plurality of divided images or the plurality of independent images,   wherein, in the determination step, whether the plurality of input images are the plurality of divided images or the plurality of independent images is determined by using the information acquired in the acquisition step.