CN1213926A - Digital camera regulating system and its regulating device - Google Patents
Digital camera regulating system and its regulating device Download PDFInfo
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- CN1213926A CN1213926A CN 98119740 CN98119740A CN1213926A CN 1213926 A CN1213926 A CN 1213926A CN 98119740 CN98119740 CN 98119740 CN 98119740 A CN98119740 A CN 98119740A CN 1213926 A CN1213926 A CN 1213926A
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Abstract
The invention relates to a digital camera adjustment device and adjustment system. This digital camera adjustment system consists of a digital camera and a digital camera adjustment device. Wherein, CCD is transformed into electrical signal by light from a luminophor and further transformed into digital signal via an A/D converter. A CPU of the digital camera calculates a proper gain, references an AWB evaluation value from an IPP under each lighting condition. A filter changeover device of the adjustment device selects a filter, calculates a proper gain for at least two colors, based on an AWB evaluation value from an IPP under each lighting condition, and sends a proper gain to the digital camera. The digital camera can properly reproduce white color, even if the color temperature of a light source is changed.
Description
The present invention relates to digital camera regulating system and adjusting device, specifically, relate to the digital camera regulating system and the adjusting device that are provided with Automatic white balance (Auto White Balance, below brief note is AWB) function.
In the past, in digital camera,, needed to adjust white balance in order to obtain the high-quality colour image.If this white balance collapse, then when white irradiated body was photographed, its photographs can be with color, and moreover, when general irradiated body was photographed, color reproduction was also poor, was difficult to obtain high-quality reproduced image.
If the light source color temperature changes, white balance just changes, so, when taking white (or netrual colour) irradiated body, must be adjusted into 1: 1: 1 as photograph tricolor signal R, the G that signal exports, the output ratio of B of digital camera.This cries the white balance adjustment, and this adjustment is generally undertaken by the variable gain circuit that adjustment is located on the transmission lines of each chrominance signal.
But, in digital camera in the past, exist light-source temperature once changing the problem that can not correctly reproduce white.
The present invention puts forward in view of the existing problem of above-mentioned prior art, and its purpose is, even be provided for adjusting digital camera regulating system and the adjusting device that the light source color temperature changes the digital camera that also can correctly reproduce white.
To achieve these goals, the present invention proposes a kind of digital camera regulating system, the digital camera adjusting device of being adjusted this digital camera by digital camera and being used to constitutes, above-mentioned digital camera be provided with the subject light by optical system be transformed into the signal of telecommunication, again with the imaging apparatus of this signal of telecommunication as color picture signal output, and to above-mentioned color picture signal carry out the A/D conversion, as the A/D converter of digital color image signal output; It is characterized in that, above-mentioned digital camera also is provided with:
White detection range setting device is used to set the color temperature scope of adjusting object as white balance;
The AWB evaluating apparatus, for the composition of all kinds (RGB) of above-mentioned digital color image signal, the corresponding AWB evaluation of estimate of brightness data of output and above-mentioned composition of all kinds;
The AWB adjusting device is used for adjusting above-mentioned digital color image signal at least two looks gain;
Storage device is used to store the suitable yield value under the some kinds of lighting conditions;
The AWB control device, with reference to the above-mentioned suitable yield value that is stored in the above-mentioned storage device, in the color temperature scope that above-mentioned white detection range setting device is set, calculate and the corresponding suitable yield value of exporting from above-mentioned AWB evaluating apparatus of AWB evaluation of estimate, set the gain of above-mentioned AWB adjusting device;
Writing station will write the above-mentioned storage device from the suitable gain under each lighting condition that above-mentioned digital camera adjusting device sends.
Above-mentioned digital camera adjusting device is provided with:
Can be under some lighting conditions the light source of irradiates light;
Suitable gain calculating machinery according to the AWB evaluation of estimate of the above-mentioned RGB under each lighting condition of above-mentioned light source, calculates the suitable gain of at least two looks;
The device of delivering letters is used for the suitable gain under above-mentioned each lighting condition is sent to above-mentioned digital camera.
According to digital camera regulating system of the present invention, its feature is that also the different filter of above-mentioned lighting device switchable optics characteristic makes the lighting condition difference.
According to digital camera regulating system of the present invention, its feature also is, above-mentioned suitable gain calculating machinery calculates aggregate-value ∑ R, ∑ G, the ∑ B of AWB evaluation of estimate to each RGB, and R, the B gain when becoming the ratio ∑ R/ ∑ G of aggregate-value and ∑ B/ ∑ G in the setting is made as suitable gain.
According to digital camera regulating system of the present invention, its feature also is, is provided with the AE control device, is used to set being switched on or switched off of AE function.
According to digital camera regulating system of the present invention, its feature also is, is provided with the AWB control device, is used to set being switched on or switched off of AWB function.
According to digital camera regulating system of the present invention, its feature also is, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
According to digital camera regulating system of the present invention, its feature also is, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
To achieve these goals, the present invention also proposes a kind of digital camera adjusting device, is used to adjust digital camera, it is characterized in that, is provided with: can be under some lighting conditions the light source of irradiates light; Suitable gain calculating machinery according to the AWB evaluation of estimate of the above-mentioned RGB under each lighting condition of above-mentioned light source, calculates the suitable gain of at least two looks; The device of delivering letters is sent to above-mentioned digital camera with the suitable gain under above-mentioned each lighting condition, so that be stored in the storage device of above-mentioned digital camera.
According to digital camera adjusting device of the present invention, its feature is that also the different filter of above-mentioned lighting device switchable optics characteristic makes the lighting condition difference.
According to digital camera adjusting device of the present invention, its feature also is, above-mentioned suitable gain calculating machinery calculates aggregate-value ∑ R, ∑ G, the ∑ B of AWB evaluation of estimate to each RGB, and R, the B gain when becoming the ratio ∑ R/ ∑ G of aggregate-value and ∑ B/ ∑ G in the setting is made as suitable gain.
According to digital camera adjusting device of the present invention, its feature also is, is provided with the AE control device, is used to set being switched on or switched off of AE function.
According to digital camera adjusting device of the present invention, its feature also is, is provided with the AWB control device, is used to set being switched on or switched off of AWB function.
According to digital camera adjusting device of the present invention, its feature also is, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
According to digital camera adjusting device of the present invention, its feature also is, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
The following describes effect of the present invention.
According to digital camera regulating system of the present invention and adjusting device, though can adjust the color temperature of light source change also can correctly reproduce white digital camera.
According to digital camera regulating system of the present invention and adjusting device, can change lighting condition simply.
According to digital camera regulating system of the present invention and adjusting device, can the high suitable gain of computational accuracy.
According to digital camera regulating system of the present invention and adjusting device, can when adjusting, AWB obtain proper exposure.
According to digital camera regulating system of the present invention and adjusting device, when AWB adjusts, can prevent the white balance state variation, be easy to carry out the white balance adjustment.
According to digital camera regulating system of the present invention and adjusting device, the operator is easy to judge the unusual of digital camera or environmental condition.
Brief Description Of Drawings is as follows:
Fig. 1 is the pie graph of the digital camera that relates to of the embodiment of the invention;
Concrete formation one example of the IPP of Fig. 2 presentation graphs 1;
Fig. 3 is the outward appearance pie graph of the digital camera adjusting device that relates to of the embodiment of the invention;
Fig. 4 is the digital camera regulating system pie graph that the embodiment of the invention relates to;
The computer of Fig. 5 presentation graphs 3 constitutes figure;
Fig. 6 represents that AWB adjusts the flow chart of processing sequence;
Fig. 7 is " expression menu " figure;
Fig. 8 is " filter choice menus " figure.
With reference to the accompanying drawings, describe the digital camera regulating system that the present invention relates to and the suitable embodiment of adjusting device in detail.
The digital camera that relates in the present embodiment is provided with AWB and adjusts function, its central processing unit (Central Processing Unit, below brief note is for CPU) as the AWB control device according to from image information pretreatment portion (Image Pre-Processor, below brief note is for IPP) the AWB adjusted value extract the AWB evaluation of estimate of initialization circuit (AWB evaluating apparatus) output in vain, with reference to the suitable yield value of adjusting under each lighting condition that has deposited in the operation in the moment memory (flash memory), the suitable yield value of calculating correspondence in the color temperature scope of setting, set in the white balance adjustment part of IPP (AWB adjusting device) above-mentioned calculate suitable yield value, carry out AWB control.In addition, the digital camera adjusting device according under each lighting condition from the AWB evaluation of estimate of the IPP of digital camera output, calculate corresponding suitable gain.This suitable gain is written into the moment of digital camera in the memory.In this manual, so-called digital camera regulating system is meant the system that comprises above-mentioned digital camera and digital camera adjusting device.
Digital camera with regard to present embodiment describes earlier.
Fig. 1 is the digital camera pie graph that the embodiment of the invention relates to, in the figure, 100 expression digital cameras, digital camera 10 is by lens 101, the mechanical mechanism 102 that comprises automatic focusing etc., CCD (Charge-Coupled Device, below brief note is CCD) 103, correlated double sampling (Correlate Dual Sampling, below brief note is CDS) circuit 104, variable gain amplifier (AGC amplifier) 105, A/D converter 106, IPP107, discrete cosine transformer (Discrete CosineTransform, below brief note is DCT) 108, encoder (Huffman Encoder/Decoder) 109, memory card controller (Memory Card Controller, below brief note is MCC) 110, RAM (internal storage) 111, PC card 112, CPU121, display part 122, operating portion 123, motor driver 125, control signal produces (SG) portion 126, photoflash lamp 127, battery 128, the DC-DC transducer, moment, memory 130 constituted.In addition, by pc card 112 with can adorn from pc card 150 be connected.
Lens subassembly by lens 101, comprise the formations such as mechanical mechanism 102 of automatic focusing (AF) aperture optical filtering portion, the mechanical shutter of mechanical mechanism 102 exposes two fields simultaneously.CCD103 scioptics assembly looks like to be transformed into the signal of telecommunication (simulated image data) with input mirror.CDS circuit 104 is for the circuit to CCD type imaging apparatus low noiseization.
In addition, 105 pairs in the AGC amplifier signal level of doing the correlated double sampling by CDS circuit 104 is carried out revisal.A/D converter 106 will be transformed into DID by the simulated image data from CCD103 of AGC amplifier input.That is, the output signal of CCD103 again by A/D converter 106, is transformed into digital signal with optimum sampling frequency (for example integral multiple of the subcarrier frequency of NTSC signal) by CDS circuit 104 and AGC amplifier 105.
In addition, 109 pairs of IPP107, DCT108 and encoders by the DIDs of A/D converter 106 inputs press aberration (cb, cr) and brightness (Y) carry out various processing, the data processing of revisal and image compression/elongation.So-called image compression/elongation data processing is meant multiple number change of the Huffman symbolism of carrying out for example image compression of the Joint Photographic Experts Group/orthogonal transform of elongation one process and the image compression of Joint Photographic Experts Group/elongation one process.
MCC110 temporarily stores the image that is compressed processing,, or reads from PC card 150 toward PC card 150 records by PC card 112.
CPU121 uses RAM (not diagram) according to the program that is stored in ROM (not having diagram) as the operating area, according to indication from operating portion 123, perhaps indicate, control whole actions of above-mentioned digital camera inside according to external action such as not having illustrated remote controller.Specifically, CPU121 control photograph action, automatic exposure (AE) are moved, Automatic white balance (AWB) is adjusted action, AF moves etc.The CPU121 basis can be set the on/off of AE function, AWB function, AF function from the instruction of the computer 207 of digital camera adjusting device 200.
In addition, the camera power supply is to be input to DC-DC transducer 129 from battery 128, for example NI-G, ni-mh, lithium battery etc., supplies with this digital camera inside.
Display part 122 is by realizations such as liquid crystal display, led lighting, electroluminescence.The recording image data that shows the DID photographed, handles through elongation.Simultaneously, at the pattern display part this digital camera state etc. is illustrated on the picture.Operating portion 123 is provided with the button that is used for carrying out from the outside function selection, photography indication and other various settings.In moment memory 130, write the suitable yield value that is used to carry out under each lighting condition that AWB adjusts.
Above-mentioned digital camera 100 be provided with shooting and the logging mode of Imagery Data Recording on PC card 150, show the image on the above-mentioned PC of the being recorded in card 150 display mode, write record adjustment modes in the moment memory 130 etc. with the collaborative data of will adjusting of digital camera adjusting device 200.
Fig. 2 represents the concrete formation of above-mentioned IP P107 one example, IPP107 is provided with the look separated part 1071 that the DID from 106 inputs of A/D converter is separated into three primary colors RGB composition of all kinds, insert the signal insertion section 1072 of each view data of RGB of being separated, adjust blanking-pulse level (Redestal) adjustment part 1073 of each view data black level of RGB, adjust the white balance adjustment part 1074 of each view data white level of RB, with the digital gain adjustment part 1075 of each view data of RGB being carried out revisal by the gain of CPU121 setting, carry out the gamma transformation component 1076 of the r conversion of each view data of RGB, each view data of RGB is separated into color difference signal (cb, cr) and matrixing (matrix) portion 1077 of luminance signal (Y), and according to color difference signal (cb, cr) and luminance signal (Y) make the vision signal handling part 1078 that vision signal outputs to display part 122.
IPP107 also is provided with the Y operational part 1079 of detection by the brightness data (Y) of blanking-pulse level adjustment part 1073 adjusted each view data of RGB, only allow the Y operational part detect and brightness data (Y) decide the BPF1080 that radio-frequency component passes through, will with the AF evaluation of estimate circuit 1081 that outputs to CPU121 by the corresponding digital count value of the brightness data (Y) of BPF1080 as the AF evaluation of estimate, the corresponding digital count value of brightness data (Y) that will get with detecting through Y operational part 1079 outputs to the AE evaluation of estimate circuit 1082 of CPU121 as the AE evaluation of estimate, gain through the digital gain adjustment part 1075 Y operational part 1083 of brightness data (Y) of adjusted each view data of RGB of detection, the corresponding digital count value of brightness data (Y) that will get with detecting through Y operational part 1083 outputs to the AWB evaluation of estimate circuit 1084 of CPU121 as the AWB evaluation of estimate, CPUI/F1085 with the CPU121 interface, and with DCTI/F1086 of DCT108 interface etc.
Above-mentioned white balance adjustment part 1074 respectively is provided with multiplier 1074r, 1074b for RB, and each gain data of RB that CPU121 is set carries out multiplying with the RB view data that is input to each multiplier 1074r, 1074b respectively, adjusts the white balance of view data.And, the above-mentioned AWB evaluation of estimate brightness range (white surveyed area) of extracting initialization circuit 1084 in vain set by CPU121.
Above-mentioned digital gain adjustment part 1075 respectively is provided with multiplier 1075r, 1075g, 1075b for RGB, and each gain data of RGB that CPU121 is set carries out multiplying with the view data that is input to each multiplier 1075r, 1075g, 1075b respectively, adjusts the signal level of rgb image data.
The following describes the action that relates to AWB control in the above-mentioned digital camera 100.
CPU121 is stored in the suitable yield value under each lighting condition in the moment memory 130 and calculates and be taken into the corresponding suitable gain of AWB evaluation of estimate that is stored in the RAM from IPP107 setting color temperature scope (white surveyed area) internal reference of adjusting object as white balance.Then, the view data that CPU121 is taken into for shooting multiply by R and B multiplier 1074r, the 1074b of suitable gain in white balance adjustment part 1074 respectively and carries out multiplying, adjusts the signal level of view data, carries out AWB control.
About being taken into the AWB evaluation of estimate, had before common photography action the AWB evaluation of estimate is stored in and be taken among (prescan) RAM, carry out the method for AWB control during photography according to this AWB evaluation of estimate, and usually in the photography action AWB evaluation of estimate being stored in the method that the AWB evaluation of estimate that has been taken into according to this is carried out AWB control that is taken among the RAM, when photographing next time, that is a kind of all right for said method.
Though 1074 adjust the RB that has only that gains in the white balance adjustment part, the present invention is not limited thereto.Can adjust the gain of at least two kinds of combinations among the RGB.
Fig. 3 represents the outward appearance pie graph of the digital camera adjusting device 200 that present embodiment relates to, and Fig. 4 is the square frame pie graph of the digital camera regulating system 300 that is made of digital camera 100 and digital camera adjusting device 200.
The digital camera adjusting device of representing among Fig. 3 and Fig. 4 200 is provided with: supply with power supply 201 to the digital camera of digital camera 100 supply powers, be used for digital camera supplied with and carry out general-purpose interface bus (General-PurposeInterface Bus with power supply 201, below brief note is for GPIB) adapter 202 of control, the monitor 203 that shows the image of being photographed with digital camera 100, be presented at the amplitude and position vector display 204 mutually of the colour signal (RGB) of digital camera 100 scannings with vector, the waveform monitor 205 that the signal of video signal of observation monitor 203 is used, screen-type progressive series of greys light source 206, to digital camera 100 and above-mentioned detector (vector display 204, waveform monitor 205 etc.) computer of controlling etc. 207, the display unit of computer 207, the display 208 of expression adjustment menu etc., be contained in the GPIBI/F209 in computer 207 bodies, stationary digital formula camera 100, carrying out digital camera supplies with power supply 201, RS-232C, the adjustment chuck body 210 that signals such as video connect, carry out filter (W4, C10, C4, W16 etc.) switching device of optical fiber 212 of Qie Huaning, the control cabinet 211 that switches according to filter from the commands for controlling switching device of optical fiber 212 of computer 207.And, constitute lighting devices with light source 206 and switching device of optical fiber 212.
Fig. 5 represents the formation of aforementioned calculation machine 207, the RAM2074 that it is provided with the CPU2072 of the input part 2071 of operating indication, control computer installation integral body, ROM2073 that storage makes the various control programs of above-mentioned 2072 actions, uses as the service area of CPU2072.
There are the adjustment data that for example are used for suitable gain data under each lighting condition etc. to write moment memory 130 the adjustment data creating program etc. of digital camera 100 as above-mentioned control program.
Adjust processing sequence below with reference to flowchart text digital camera 100 shown in Figure 6 and the digital camera adjusting device 200 collaborative AWB that carry out.
In this AWB adjusts, the screen-type progressive series of greys are arranged on the light source 206 (5100K), by switching different qualities filter (W4, C10, C4, W16 etc.), change the lighting condition of light source 206 at switching device of optical fiber 212, calculate AWB and adjust data.
Earlier as shown in Figure 5, digital camera 100 is installed on the chuck body 210 of digital camera adjusting device 200, connect the power supply of digital camera 100 and digital camera adjusting device 200, carry out initial stage processing (the step S1 of digital camera 100 and digital camera adjusting device 200, P1), " the expression menu " among Fig. 7 is presented at display 208 (step S2).In addition, in digital camera 100, set adjustment logging mode (step P2).
Then, if select AWB to adjust (step S3) from " expression menu " picture (with reference to Fig. 7) of display 208 at digital camera adjusting device 200, then show " filter choice menus " shown in Figure 8 picture, select picture and selecting filter (step S4) from this.The CPU2072 of computer 207 switches to selected filter (step S5) by control cabinet 211 with the filter of light source 206.
Subsequently, the CPU2072 of computer 207 sends the instruction (step P3) that expression beginning AWB adjusts by the RS232C cable to the CPU121 of digital camera 100.And the value of counter K is set at initial value " 0 " (step S7).
The CPU121 of digital camera 100 receives above-mentioned instruction (step P3), just AF function and AE function are made as connection, the AWB function is made as under the off-state, set R, B gain initial value respectively at multiplier 1074r, the 1074b of wwhite balance control circuit 1074, (step P4) photographs.
During photography, export R, the G that sets in the brightness range (white surveyed area), the AWB evaluation of estimate of B from the AWB evaluation of estimate circuit 1084 of IPP respectively to CPU121, CPU121 is sent to the AWB evaluation of estimate of these R, G, B in the computer 207 (step P5) of digital camera adjusting device 200.
The CPU2072 of computer 207 receives the AWB evaluation of estimate of R, G, B, just calculate respectively R, G, B ∑ R, ∑ G, ∑ B (step S8).Then, CPU2072 calculates ∑ R/ ∑ G, and ∑ B/ ∑ G (step S 9) is with value increase by 1 (the step S10) of counter K.
Subsequently, CPU2072 judges whether ∑ R/ ∑ G and ∑ B/ ∑ G are near the setting (1) (step S11), when ∑ R/ ∑ G and ∑ B/ ∑ G are in occasion in the setting, R, B gain is at this moment adjusted gain as AWB, be sent to the CPU121 (step S12) of digital camera.The AWB that the CPU121 of digital camera 100 receives this R and B adjusts gain, just deposits in the moment memory 130 (step P6).
On the other hand, in step S11, when ∑ R/ ∑ G and ∑ B/ ∑ G are not in occasion in the setting, whether then move on to step S13, judge the value of counter K, it is more than stipulated number N promptly to adjust number of times, when K＞N, be judged as digital camera or environmental condition is unusual, this information representation on display 208, is reported operator (step S15).
And when K is not more than N, then moving on to step S14, change R, B gain makes ∑ R/ ∑ G and ∑ B/ ∑ G become near 1.With calculating and R, B gain and the indication that should photograph the once more CPU2072 (step S14) that is sent to digital camera.The CPU121 of digital camera 100 multiplier 1074r, the 1074b of wwhite balance control circuit 1074 set calculate R, B gain, (step P4) photographs.Send AWB evaluation of estimate (step P5) once more.And the CPU2072 of computer is (step S 8) after calculating ∑ R, ∑ G, ∑ B respectively, calculate ∑ R/ ∑ G, ∑ B/ ∑ G (step S9), the value of counter k is increased by 1 (step S10), and N exceeds with stipulated number, above-mentioned repeatedly processing (step S14, P4, P5, S8, S9, S10, S11 S13), becomes in the afore mentioned rules value up to ∑ R/ ∑ G and ∑ B/ ∑ G.
For each filter W4, C10, C4, W16 carry out above-mentioned processing (step S4-S14 P3-P6), adjust gain with the AWB under each lighting condition and deposits in the moment memory 130.
In above-mentioned processing, when adjusting number of times, be judged as digital camera or environmental condition is unusual greater than stipulated number, and with this content representation on display 208, report the operator.Surpass and to be judged as digital camera when institute fixes time or environmental condition is unusual but also can be set at when the adjustment time.
As mentioned above, in the digital camera regulating system 300 of present embodiment, the CCD103 of digital camera is transformed into the signal of telecommunication with the irradiated body light of scioptics assembly 101, export as color picture signal, at A/D converter 106 this color picture signal is done the A/D conversion, become the output of digital color image signal, the corresponding AWB evaluation of estimate of brightness data of each colour content (RGB) of IPP107 output and digital color image signal, CPU121 is with reference to the suitable yield value under each lighting condition that is stored in the moment memory 130, in the color temperature scope of setting, calculate and the corresponding suitable yield value of exporting from IPP107 of AWB evaluation of estimate, in the white balance adjustment part 1074 set above-mentioned calculate suitable gain, carry out AWB and adjust; On the other hand, in the digital camera adjusting device 200 of present embodiment, switching device of optical fiber 212 switches filter, make the lighting condition difference of light source 206, according under each lighting condition from the AWB evaluation of estimate of the RGB of the IPP107 of digital camera 100 output, calculate the suitable gain of at least two looks, the suitable gain under each lighting condition is posted a letter to digital camera 100, above-mentioned suitable gain is write the moment memory of digital camera 100; Therefore, even the color temperature of light source changes, digital camera also can reproduce white suitably.
In the present embodiment, the different filter of switching device of optical fiber 212 switchable optics characteristics makes the lighting condition difference of light source 206, therefore, can change lighting condition simply.
In the present embodiment, each RGB is calculated aggregate-value ∑ R, ∑ G, the ∑ B of AWB evaluation of estimate, R, the B gain when becoming the ratio ∑ R/ ∑ G of aggregate-value and ∑ B/ ∑ G in the setting is made as suitable gain, therefore, can obtain the high suitable gain of precision.
In the present embodiment, when AWB adjusts, the AE function of digital camera 100 is made as connection, so AWB can obtain suitable exposure when adjusting.
In the present embodiment, when AWB adjusts, the AWB function of digital camera 100 is made as disconnection, so AWB can prevent the white balance state variation when adjusting, and can be easy to carry out the white balance adjustment.
In the present embodiment, when AWB adjusts, set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ", so the operator can be easy to judge " digital camera or environmental condition are for unusual ".
In the present embodiment, when AWB adjusts, for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ", so the operator can be easy to judge " digital camera or environmental condition are for unusual ".
Claims (34)
1. digital camera regulating system, the digital camera adjusting device of being adjusted this digital camera by digital camera and being used to constitutes, above-mentioned digital camera be provided with the subject light by optical system be transformed into the signal of telecommunication, again with the imaging apparatus of this signal of telecommunication as color picture signal output, and to above-mentioned color picture signal carry out the A/D conversion, as the A/D converter of digital color image signal output; It is characterized in that:
Above-mentioned digital camera also is provided with:
White detection range setting device is used to set the color temperature scope of adjusting object as white balance;
The AWB evaluating apparatus, for the composition of all kinds (RGB) of above-mentioned digital color image signal, the corresponding AWB evaluation of estimate of brightness data of output and above-mentioned composition of all kinds;
The AWB adjusting device is used for adjusting above-mentioned digital color image signal at least two looks gain;
Storage device is used to store the suitable yield value under the some kinds of lighting conditions;
The AWB control device, with reference to the above-mentioned suitable yield value that is stored in the above-mentioned storage device, in the color temperature scope that above-mentioned white detection range setting device is set, calculate and the corresponding suitable yield value of exporting from above-mentioned AWB evaluating apparatus of AWB evaluation of estimate, set the gain of above-mentioned AWB adjusting device;
Writing station will write the above-mentioned storage device from the suitable gain under each lighting condition that above-mentioned digital camera adjusting device sends;
Above-mentioned digital camera adjusting device is provided with:
Can be under some lighting conditions the light source of irradiates light;
Suitable gain calculating machinery according to the AWB evaluation of estimate of the above-mentioned RGB under each lighting condition of above-mentioned light source, calculates the suitable gain of at least two looks;
The device of delivering letters is used for the suitable gain under above-mentioned each lighting condition is sent to above-mentioned digital camera.
2. according to the digital camera regulating system described in the claim 1, it is characterized in that the different filter of above-mentioned lighting device switchable optics characteristic makes the lighting condition difference.
3. according to the digital camera regulating system described in claim 1 or 2, it is characterized in that, above-mentioned suitable gain calculating machinery calculates aggregate-value ∑ R, ∑ G, the ∑ B of AWB evaluation of estimate to each RGB, and R, the B gain when becoming this ∑ R/ ∑ G of aggregate-value and ∑ B/ ∑ G in the setting is made as suitable gain.
4. according to the digital camera regulating system described in claim 1 or 2, it is characterized in that, be provided with the AE control device, be used to set being switched on or switched off of AE function.
5. according to the digital camera regulating system described in the claim 3, it is characterized in that, be provided with the AE control device, be used to set being switched on or switched off of AE function.
6. according to any described digital camera regulating system in the claim 1,2,5, it is characterized in that, be provided with the AWB control device, be used to set being switched on or switched off of AWB function.
7. according to the digital camera regulating system described in the claim 3, it is characterized in that, be provided with the AWB control device, be used to set being switched on or switched off of AWB function.
8. according to the digital camera regulating system described in the claim 4, it is characterized in that, be provided with the AWB control device, be used to set being switched on or switched off of AWB function.
9. according to any described digital camera regulating system in the claim 1,2,5,7,8, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
10. according to the digital camera regulating system described in the claim 3, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
11. according to the digital camera regulating system described in the claim 4, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
12. according to the digital camera regulating system described in the claim 6, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
13. according to any described digital camera regulating system among claim 1,2,5,7,8, the 10-12, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
14. according to the digital camera regulating system described in the claim 3, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
15. according to the digital camera regulating system described in the claim 4, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
16. according to the digital camera regulating system described in the claim 6, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
17. according to the digital camera regulating system described in the claim 9, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
18. a digital camera adjusting device is used to adjust digital camera, it is characterized in that, is provided with:
Can be under some lighting conditions the light source of irradiates light;
Suitable gain calculating machinery according to the AWB evaluation of estimate of the above-mentioned RGB under each lighting condition of above-mentioned light source, calculates the suitable gain of at least two looks;
The device of delivering letters is sent to above-mentioned digital camera with the suitable gain under above-mentioned each lighting condition, so that be stored in the storage device of above-mentioned digital camera.
19. the digital camera adjusting device according to described in the claim 18 is characterized in that, the different filter of above-mentioned lighting device switchable optics characteristic makes the lighting condition difference.
20. according to the digital camera adjusting device described in claim 18 or 19, it is characterized in that, above-mentioned suitable gain calculating machinery calculates aggregate-value ∑ R, ∑ G, the ∑ B of AWB evaluation of estimate to each RGB, and R, the B gain when becoming the ratio ∑ R/ ∑ G of aggregate-value and ∑ B/ ∑ G in the setting is made as suitable gain.
21. the digital camera adjusting device according to described in claim 18 or 19 is characterized in that, is provided with the AE control device, is used to set being switched on or switched off of AE function.
22. the digital camera regulating system device according to described in the claim 20 is characterized in that, is provided with the AE control device, is used to set being switched on or switched off of AE function.
23., it is characterized in that according to any described digital camera adjusting device in the claim 18,19,22, be provided with the AWB control device, be used to set being switched on or switched off of AWB function.
24. the digital camera adjusting device according to described in the claim 20 is characterized in that, is provided with the AWB control device, is used to set being switched on or switched off of AWB function.
25. the digital camera adjusting device according to described in the claim 21 is characterized in that, is provided with the AWB control device, is used to set being switched on or switched off of AWB function.
26. according to any described digital camera adjusting device in the claim 18,19,22,24,25, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
27. according to the digital camera adjusting device described in the claim 20, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
28. according to the digital camera adjusting device described in the claim 21, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
29. according to the digital camera adjusting device described in the claim 23, it is characterized in that, above-mentioned suitable gain calculating machinery is set stipulated number for the adjustment number of times that calculates suitable gain, when the adjustment number of times can't obtain suitable gain above this stipulated number, report the information of " digital camera or environmental condition are for unusual ".
30. according to any described digital camera adjusting device among claim 18,19,22,24,25, the 27-29, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
31. according to the digital camera adjusting device described in the claim 20, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
32. according to the digital camera adjusting device described in the claim 21, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
33. according to the digital camera adjusting device described in the claim 23, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
34. according to the digital camera adjusting device described in the claim 26, it is characterized in that, above-mentioned suitable gain calculating machinery is for the adjustment time set stipulated time of calculating suitable gain, when the adjustment time can't obtain suitable gain above this stipulated time, report the information of " digital camera or environmental condition are for unusual ".
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26754597 | 1997-09-30 | ||
| JP267543/1997 | 1997-09-30 | ||
| JP267545/97 | 1997-09-30 | ||
| JP267543/97 | 1997-09-30 | ||
| JP26754397 | 1997-09-30 | ||
| JP267545/1997 | 1997-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1213926A true CN1213926A (en) | 1999-04-14 |
| CN1144446C CN1144446C (en) | 2004-03-31 |
Family
ID=26547922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB98119740XA Expired - Fee Related CN1144446C (en) | 1997-09-30 | 1998-09-29 | Digital camera regulating system and its regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1144446C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350804C (en) * | 2003-12-03 | 2007-11-21 | 三星电机株式会社 | Digital automatic white balance device |
| CN100409665C (en) * | 2003-05-28 | 2008-08-06 | 奥林巴斯株式会社 | Electric camera and signal amplification ratio adjusting method therefor |
| CN100428778C (en) * | 2005-02-08 | 2008-10-22 | 奥林巴斯映像株式会社 | Color adjustment method and apparatus |
| CN101753847A (en) * | 2008-12-10 | 2010-06-23 | 三星数码影像株式会社 | Color temperature compensating imaging apparatus and method |
| CN101448086B (en) * | 2002-07-18 | 2011-09-07 | 索尼株式会社 | Imaging data processing method and imaging data processing device |
| CN101222572B (en) * | 2007-01-11 | 2011-12-07 | 昆山杰得微电子有限公司 | White balance processing equipment |
| CN104427322A (en) * | 2013-08-28 | 2015-03-18 | 索尼公司 | Information processing device, imaging device, information processing method, and program |
| CN113542596A (en) * | 2021-06-29 | 2021-10-22 | 中国科学院长春光学精密机械与物理研究所 | CCD imager and imaging control method |
-
1998
- 1998-09-29 CN CNB98119740XA patent/CN1144446C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448086B (en) * | 2002-07-18 | 2011-09-07 | 索尼株式会社 | Imaging data processing method and imaging data processing device |
| CN100409665C (en) * | 2003-05-28 | 2008-08-06 | 奥林巴斯株式会社 | Electric camera and signal amplification ratio adjusting method therefor |
| CN100350804C (en) * | 2003-12-03 | 2007-11-21 | 三星电机株式会社 | Digital automatic white balance device |
| CN100428778C (en) * | 2005-02-08 | 2008-10-22 | 奥林巴斯映像株式会社 | Color adjustment method and apparatus |
| CN101222572B (en) * | 2007-01-11 | 2011-12-07 | 昆山杰得微电子有限公司 | White balance processing equipment |
| CN101753847A (en) * | 2008-12-10 | 2010-06-23 | 三星数码影像株式会社 | Color temperature compensating imaging apparatus and method |
| CN104427322A (en) * | 2013-08-28 | 2015-03-18 | 索尼公司 | Information processing device, imaging device, information processing method, and program |
| CN113542596A (en) * | 2021-06-29 | 2021-10-22 | 中国科学院长春光学精密机械与物理研究所 | CCD imager and imaging control method |
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| Publication number | Publication date |
|---|---|
| CN1144446C (en) | 2004-03-31 |
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