Digital camera

Abstract

The digital camera comprises: an image-taking device for converting light from a subject to a video signal and outputting the video signal; an image processor which has a gain adjuster for performing gain adjustment individually for respective color information of R, G, B of the video signal outputted from the image-taking device, and an image data converter for converting the adjusted video signal outputted from the gain adjuster into image data; a displaying device for displaying the image data; a setting device; and a controller for controlling the gain adjuster to perform RGB color discrimination of the video signal and gain adjustment individually on the respective color information by a command from the setting device.

1 . A digital camera, comprising: 
 an image-taking device for converting light from a subject to a video signal and outputting said video signal;    a gain adjuster which performs gain adjustment individually for respective color information of R, G, B of said video signal outputted from said image-taking device, and outputs an adjusted video signal;    an image data converter for converting said adjusted video signal outputted from said gain adjuster into image data;    a displaying device for displaying said image data;    a setting device in which gain adjusting amounts for said respective color information are set; and    a controller for controlling said gain adjuster such that gain adjustment is performed individually on said respective color information according to said gain adjusting amounts set in said setting device.    
     
     
         2 . The digital camera according to  claim 1 , wherein: 
 said video signal is a color signal of Cy, Mg, Ye, G; and    said gain adjuster comprises a complementary-color/primary-color converter for converting said color signal of Cy, Mg, Ye, G into a color signal of R, G, B, and performs each gain adjustment after converting to R, G, B.    
     
     
         3 . The digital camera according to  claim 1 , further comprising a storage device for storing gain adjusting values for respective color information in accordance with degrees of color-vision impairment, wherein: 
 said setting device has said degrees of said color-vision impairment set therein instead of said gain adjusting amounts; and    said controller reads out, from said storage device, said gain adjusting value corresponding to said degree of said color-vision impairment set in said setting device, and transmits said gain adjusting value that is read out to said gain adjuster.    
     
     
         4 . The digital camera according to  claim 1 , further comprising: 
 a color discriminator for discriminating a boundary between two color regions which are adjacent to each other in said image data on a plane; and    an superimposing device that generates superimposing data, which is image data where at least one of luminance, hue, or saturation is changed in said boundary discriminated by said color discriminator, and superimposes said superimposing data on said image data, wherein    said controller controls said color discriminator and said superimposing device.    
     
     
         5 . The digital camera according to  claim 4 , wherein: 
 said image data converter outputs both of image data obtained by converting said video signal with no gain adjustment, and image data obtained by converting said adjusted video signal with gain adjustment;    said color discriminator further discriminates a difference between color information of said two color regions of said image data that is obtained by converting said video signal and color information of said two color regions of said image data that is obtained by converting said adjusted video signal; and    said superimposing device generates said superimposing data exclusively for said boundary between said two color regions that satisfy following conditions of A), B) from a result of discrimination by said color discriminator, and superimposes said superimposing data on said image data that is obtained by converting said adjusted video signal.    A) In said image data obtained by converting said video signal, color information differs between said two color regions.    B) In said image data obtained by converting said adjusted video signal, hues are same for said two color regions.    
     
     
         6 . The digital camera according to  claim 5 , further comprising a timer for outputting interruption by every prescribed time, wherein 
 said controller controls said superimposing device to switch superimposing and non-superimposing of said superimposing data for every said interruption outputted from said timer.    
     
     
         7 . The digital camera according to  claim 5 , wherein said storage device further stores unadjusted color that has no gain adjustment performed, said digital camera further comprising: 
 a stored color comparator which compares color information of each of said color regions of said image data obtained by converting said video signal with said unadjusted color and, when consistent, outputs said image data obtained by converting said video signal to said color regions, while outputting said image data obtained by converting said adjusted video signal to said color regions when inconsistent.    
     
     
         8 . The digital camera according to  claim 1 , wherein: 
 said image data converter outputs both of image data obtained by converting said video signal with no gain adjustment, and image data obtained by converting said adjusted video signal with gain adjustment;    said color discriminator further discriminates a difference between color information of said two color regions of said image data that is obtained by converting said video signal and color information of said two color regions of said image data that is obtained by converting said adjusted video signal; and    said superimposing device generates superimposing data, which is image data where at least one of luminance, hue, or saturation is changed in either one of said two color regions that satisfy following conditions of A), B) from a result of discrimination by said color discriminator, and superimposes said superimposing data on said image data.    A) In said image data obtained by converting said video signal, color information differs between said two color regions.    B) In said image data obtained by converting said adjusted video signal, hues are same for said two color regions.    
     
     
         9 . The digital camera according to  claim 8 , further comprising a timer for outputting interruption by every prescribed time, wherein 
 said controller controls said superimposing device to switch superimposing and non-superimposing of said superimposing data for every said interruption outputted from said timer.    
     
     
         10 . The digital camera according to  claim 8 , wherein said storage device further stores unadjusted color that has no gain adjustment performed, said digital camera further comprising: 
 a stored color comparator which compares color information of each of said color regions of said image data obtained by converting said video signal with said unadjusted color and, when consistent, outputs said image data obtained by converting said video signal to said color regions, while outputting said image data obtained by converting said adjusted video signal to said color regions when inconsistent.    
     
     
         11 . The digital camera according to  claim 1 , further comprising: 
 a color discriminator for discriminating a boundary between two color regions which are adjacent to each other in said image digital data on a plane, and for discriminating color information of said boundary;    a storage device for storing color information of said image data obtained by converting said adjusted video signal; and    a superimposing device that generates superimposing data, which is image data where said color information of said boundary discriminated by said color discriminator is converted to said color information that is not stored in said storage device, and superimposes said superimposing data on said image data, wherein    said controller controls said color discriminator and said superimposing device.    
     
     
         12 . The digital camera according to  claim 11 , further comprising a timer for outputting interruption by every prescribed time, wherein 
 said controller controls said superimposing device to switch superimposing and non-superimposing of said superimposing data for every said interruption outputted from said timer.    
     
     
         13 . The digital camera according to  claim 11 , wherein said storage device further stores unadjusted color that has no gain adjustment performed, said digital camera further comprising: 
 a stored color comparator which compares color information of each of said color regions of said image data obtained by converting said video signal with said unadjusted color and, when consistent, outputs said image data obtained by converting said video signal to said color regions, while outputting said image data obtained by converting said adjusted video signal to said color regions when inconsistent.    
     
     
         14 . The digital camera according to  claim 1 , further comprising: 
 a color discriminator for discriminating a boundary between two color regions which are adjacent to each other in said image data on a plane;    a storage device for storing an unexpressed color for showing a color that cannot be obtained from said color information that is gain-adjusted according to said gain adjusting amount set in said setting device; and    a superimposing device that generates superimposing data, which is image data where said color information of said boundary discriminated by said color discriminator is converted to said unexpressed color that is stored in said storage device, and superimposes said superimposing data on said image data, wherein    said controller controls said color discriminator and said superimposing device.    
     
     
         15 . The digital camera according to  claim 14 , further comprising a timer for outputting interruption by every prescribed time, wherein 
 said controller controls said superimposing device to switch superimposing and non-superimposing of said superimposing data for every said interruption outputted from said timer.    
     
     
         16 . The digital camera according to  claim 14 , wherein said storage device further stores unadjusted color that has no gain adjustment performed, said digital camera further comprising: 
 a stored color comparator which compares color information of each of said color regions in said image data obtained by converting said video signal with said unadjusted color and, when consistent, outputs said image data obtained by converting said video signal to said color regions, while outputting said image data obtained by converting said adjusted video signal to said color regions when inconsistent.    
     
     
         17 . The digital camera according to  claim 1 , wherein said gain adjuster adjusts a value of image data itself instead of superimposing superimposing data on said image data.