JP4605288B2 - RAW data processing apparatus, RAW data processing method and program thereof - Google Patents

Description

  The present invention relates to a RAW data processing device, a RAW data processing method, and a program thereof.

Conventionally, digital cameras that perform sepia processing and monochrome processing on image data are known. For example, in the digital camera described in Patent Document 1, a command for executing sepia processing or monochrome processing is input from a printer connected to the digital camera by a user operating a sepia / monochrome key button of the printer. When image data to be processed is received, sepia processing or monochrome processing is executed on the image represented by the image data, and the image data file subjected to the image processing is transmitted to the printer. The printer that has received the image data file subjected to the image processing executes printing of the image data.
JP 2002-314930 A

  By the way, in a digital camera having a function of saving RAW data before development processing, which is captured by an image sensor such as a CCD, a user may instruct execution of monochromatic processing such as sepia processing or monochrome processing at the time of shooting. . At this time, in this type of digital camera, when storing header information and RAW data including various types of information in the RAW file, the reduced image data (for example, subjected to monochromatic processing and development processing) (for example, , Thumbnail data and screen nail data) are stored in a RAW file. When the printing device is instructed to print the RAW data included in the RAW file, the printing device executes the printing after executing the RAW data development processing and the monochromatic processing.

  However, generally, since the format of the RAW file is different for each model of the digital camera, information on whether or not the RAW file is a RAW file instructed by the user at the time of shooting in the RAW file. It is not always described in. Therefore, even if the printing device that executes the printing process of the RAW data included in the RAW file can analyze the contents of the RAW file during the development process before the printing process, whether or not the user has instructed the monochrome process at the time of shooting. Such information may not be obtained directly from the RAW file. In this case, even if the user desires a monochromatic process, the monochromatic process cannot be executed.

  The present invention has been made in view of the above-described problems, and RAW data processing is capable of performing development processing including monochromatic processing of the own device on RAW data for which the user has instructed monochromatic processing in another device. An object is to provide a device, a RAW data processing method, and a program thereof.

  The RAW data processing apparatus, the RAW data processing method, and the program thereof according to the present invention employ the following means in order to achieve at least a part of the above object.

The RAW data processing apparatus of the present invention
A RAW data processing device for processing RAW data,
Output means for performing predetermined output processing;
A data reading means for reading out the RAW data and the other machine development data from a storage means for storing the RAW data and other machine development data obtained by developing another device on the RAW data;
When there is an output request for the RAW data, it is determined whether the read development data of the other machine has been subjected to a development process including a monochrome process of the other machine, and the monochrome process of the other machine is performed. If the development process including the self-development process is performed, the read-out RAW data is subjected to the development process including the monochromatic process of the self-machine to generate the self-development data, and based on the self-development data Control means for controlling the output means to perform predetermined output processing;
It is equipped with.

  In this RAW data processing apparatus, when there is a request for outputting RAW data, it is determined whether or not the read development data of the other device has been subjected to development processing including monochrome processing of the other device. When the development process including the monochrome process of the machine is performed, the developed data including the monochrome process of the machine is generated by performing the development process including the monochrome process of the machine to the read RAW data. The output means is controlled to perform a predetermined output process based on the above. By doing so, it is possible to perform development processing including monochrome processing of the own device on the RAW data for which the user has instructed the monochrome processing in another device. Here, examples of the predetermined output process include a printing process and a display process. The monochromatic processing includes monochromatic processing that expresses an image in white, black, and gray, and monotone processing that expresses an image by only one chromatic shade of light and shade.

  In the RAW data processing apparatus of the present invention, the other-device development data may be thumbnail data or screen nail data recorded in a file including the RAW data. Since thumbnail data and screen nail data are often stored together with RAW data created in a photographing apparatus (for example, a digital camera), it is preferable to utilize these data as developed data.

  In the RAW data processing apparatus of the present invention, the other-device development data may be image data included in a simultaneous recording file stored in the storage unit as a file different from the file including the RAW data. In this way, when a simultaneous recording file is created, the simultaneous recording file can be used effectively.

  In the RAW data processing apparatus according to the present invention, when the output of the RAW data is requested, the control unit is configured such that the read development data of the other machine is subjected to development processing including monochrome processing of the other machine. In this case, based on the color information of each or all of the pixels of the other machine development data, the read development data of the other machine is subjected to development processing including monochromatic processing of the other machine. It is good also as a means to determine whether it is what was done. In this way, it is possible to accurately determine whether or not the RAW data that is the target of the output request has been subjected to the monochrome processing of the other device.

  The RAW data processing apparatus of the present invention includes setting value input means that allows a user to input setting values related to development processing including monochromatic processing of the own device, and the control means is configured to automatically read the RAW data read out. When performing development processing including monochromatic processing of a machine, the development processing may be performed based on the set value. In this way, the development process desired by the user can be executed.

The RAW data processing method of the present invention is a RAW data processing method by computer software that performs predetermined output processing on RAW data,
(A) when there is an output request for the RAW data, determining whether or not the other device development data read from the storage means has been subjected to development processing including monochrome processing of the other device;
(B) When it is determined in step (a) that the development process including the monochromatic process of the other machine has been performed, the RAW data read from the storage means includes the monochromatic process of the own machine. Generating own development data by performing development processing and performing output processing based on the own development data;
Is included.

  In this RAW data processing method, when there is a RAW data output request, it is determined whether or not the other device development data read from the storage means has undergone development processing including monochrome processing of the other device. When it is determined that the development process including the monochrome process of the machine has been performed, the development data including the monochrome process of the own machine is generated on the RAW data read from the storage unit to generate the own development data. An output process is performed based on the own development data. By doing so, it is possible to perform development processing including monochrome processing of the own device on the RAW data for which the user has instructed the monochrome processing in another device. Here, examples of the predetermined output process include a printing process and a display process. The monochromatic processing includes monochromatic processing that expresses an image in white, black, and gray, and monotone processing that expresses an image by only one chromatic shade of light and shade. In addition, you may add the step for implement | achieving the effect | action and function show | played by the various structures with which the raw data processing apparatus of this invention mentioned above is equipped.

  The program of the present invention is for causing one or more computers to execute each step of the above-described RAW data processing method. This program may be recorded on a computer-readable recording medium (for example, hard disk, ROM, FD, CD, DVD, etc.), or from a computer via a transmission medium (communication network such as the Internet or LAN). It may be distributed to another computer, or may be exchanged in any other form. If this program is executed by one computer or distributed to a plurality of computers, each step of the above-described RAW data processing method is executed, so that the same effect as the above-described RAW data processing method can be obtained. It is done.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external view and block diagram showing a schematic configuration of a multifunction printer 10 which is an embodiment of a file processing apparatus of the present invention, FIG. 2 is an explanatory diagram of files stored in a memory card 42, and FIG. It is explanatory drawing of the RAW file 90. FIG.

  As shown in FIG. 1, the multi-function printer 10 of the present embodiment includes a printer unit 20 that performs printing on a printing paper S based on a print job, and a scanner unit 30 that reads a document placed on a glass table 36. And a memory card controller 44 for inputting / outputting data to / from the memory card 42 inserted in the memory card slot 40, displaying various information on the display unit 52, and giving user instructions via the operation of buttons 54. Input operation panel 50 and a main controller 60 for controlling the entire apparatus. The multifunction printer 10 is configured such that the printer unit 20, the scanner unit 30, the memory card controller 44, and the main controller 60 can exchange various control signals and data via the bus 12.

  The printer unit 20 includes a printer ASIC 22 and a printer engine 24. The printer ASIC 22 is an integrated circuit that controls the printer engine 24. Upon receiving a print command from the main controller 60, the printer ASIC 22 controls the printer engine 24 to print on the paper S based on the image file that is the target of the print command. The printer engine 24 is configured as a well-known inkjet color printer mechanism that performs printing by discharging ink from a print head onto a sheet. Note that ASIC is an abbreviation for Application Specific Integrated Circuit.

  The scanner unit 30 includes a scanner ASIC 32 and a scanner engine 34. The scanner ASIC 32 is an integrated circuit that controls the scanner engine 34. Upon receiving a scan command from the main controller 60, the scanner ASIC 32 controls the scanner engine 34 to read a document placed on the glass table 36 as image data. The scanner engine 34 is configured as a well-known image scanner, and the reflected light after emitting light toward the document is separated into red (R), green (G), and blue (B) colors to obtain scan data. A known color image sensor is provided.

  The memory card controller 44 inputs and outputs data to and from the memory card 42 inserted in the memory card slot 40 provided on the side of the operation panel 50. When the memory card 42 is connected to the memory card slot 40, the memory card controller 44 reads a file stored in the memory card 42 and transmits it to the main controller 60 or inputs a command from the main controller 60. Data is written to the memory card 42 based on the command. At this time, for example, as shown in FIG. 2, the memory card 42 stores a RAW file 90a generated by the user shooting the subject 1 with a digital camera or the like, and a simultaneous recording JPEG file for the subject 1 created at that time. 90b, a RAW file 90c created by photographing the subject 2, a RAW file 90d created by photographing the subject 3, and the like are stored.

  Here, the RAW file 90a will be described with reference to FIG. The RAW file 90a is, for example, a file created inside the digital camera when it is photographed by the digital camera, and is stored in the memory card 42 inserted into the digital camera. This RAW file 90a is raw data obtained by digitizing an electric signal obtained from a charge generated by light received by an image pickup device (for example, CCD or CMOS) of a digital camera and a header 92 in which various information is stored. In addition to the RAW data 94, thumbnail data 96 and screen nail data 98, which are reduced images obtained by developing the RAW data 94, are included. The same applies to other RAW files, and in many cases includes thumbnail data and screen nail data. The header 92 includes, for example, the number of vertical pixels of the RAW data 94, the number of horizontal pixels, the size of one pixel, the presence / absence of thumbnail data and screen nail data, the compression format of the attached thumbnail data 96 and screen nail data 98, various This area has information such as development parameters. Here, the header 92 may include information indicating whether or not the user has selected to execute the monochromatic process at the time of shooting, but may not be included depending on the camera. This is because the format of the RAW file 90a created by the digital camera is usually different for each model. Therefore, in the description of the present embodiment, it is assumed that the header 92 of the RAW file 90a does not include information indicating whether or not the user has instructed execution of monochromatic processing at the time of shooting. The RAW data 94 has any one of RGB data per pixel. Taking the case where the image pickup device is a color CCD as an example, as shown in FIG. 4, a color CCD 70 generally used in a digital camera covers each CCD device with one color filter of three colors of RGB. The individual elements can distinguish different colors, and one R and one B and two G are arranged in a 2 pixel × 2 pixel window 70a. Therefore, the RAW data 94 has any one of RGB data per pixel. Note that the RAW data 94 usually has a rich gradation expression of 8 to 16 bits for each of RGB, and is either uncompressed or reversible compressed so that it can be restored to the same state even after being compressed. The thumbnail data 96 is mainly created as image data when displaying a plurality of image data on the display screen of the digital camera, and the RAW data 94 is converted into the predetermined pixel size (for example, 160 × 120) from the digital camera. It is developed inside. For this reason, when the user has instructed the execution of monochromatic processing such as monochrome processing or sepia processing at the time of shooting, the color information of each pixel of the thumbnail data 96 is obtained after the monochromatic processing is performed. It expresses color. The screen nail data 98 is created as image data to be displayed on the display screen of the digital camera, and the RAW data 94 is converted into a predetermined pixel size (for example, 480 × 360) larger than the thumbnail data 96. It is developed inside. For this reason, as with the thumbnail data 96, when the user has instructed to execute the monochromatic process at the time of shooting, the color information of each pixel of the screen nail data 98 is the color information after the monochromatic process is performed. It expresses color. The thumbnail data 96 and the screen nail data 98 are subjected to predetermined compression processing (in this embodiment, JPEG compression processing) when RAW data is developed inside the digital camera in order to create them. To be created.

  Next, the simultaneous recording JPEG file 90b will be described. If the user has selected to save a JPEG file in addition to the above-described RAW file and execute a monochromatic process at the time of shooting, the settings made by the user at the time of shooting (for example, the JPEG compressed to be created) JPEG file is created and stored in the memory card 42 in accordance with the setting of the image data size and the like. This JPEG file is a simultaneous recording JPEG file. The color information of each pixel of the image data included in the simultaneous recording JPEG file expresses the color after being subjected to monochromatic processing, like the thumbnail data 96 and the screen nail data 98 described above. .

  The thumbnail data 96 and the screen nail data 98 are often created by JPEG compression, and the image data included in the simultaneous recording JPEG file is JPEG compressed image data. Pixel color information is expressed in the well-known YCbCr color system according to the JPEG compression standard. The JPEG-compressed image data created here is usually created by reducing the data size by appropriately thinning out the information contained in the RAW data. Since an arithmetic error or the like occurs, it is impossible to reproduce 100% of the RAW data from the JPEG-compressed image data.

  The operation panel 50 includes a display unit 52 and buttons 54. The display unit 52 is a liquid crystal display, and displays information related to the printing status, a print menu, a development parameter input screen, image data to be printed, and the like. Buttons 54 include an arrow key 56 that is operated when image data to be printed is selected or when development parameters are input, a print button 58 that is pressed when printing selected image data, and development parameters. A device that can be inputted with a user instruction to the main controller 60 via the internal communication interface 69. It is.

The main controller 60 is configured as a microprocessor centered on a CPU 62, and includes a ROM 64 that stores various processing programs, various data, various tables, a RAM 66 that temporarily stores scan data and print data, and an electrical circuit. And a flash memory 68 that retains data even when the power is turned off, and an internal communication interface 69 that enables communication with the operation panel 50, and these can exchange signals with each other via the bus 12. It is connected like that. The main controller 60 inputs various operation signals and various detection signals from the printer unit 20, the scanner unit 30 and the memory card controller 44, and inputs operation signals generated in response to the operation of the buttons 54 of the operation panel 50. To do. Further, a command for reading out the RAW files 90a, 90c, 90d and the JPEG file 90b from the memory card 42 and outputting them to the main controller 60 is output to the memory card controller 44, or developed data (for example, JPEG compressed image data). A command is output to the printer unit 20 so as to execute printing, and a command is issued to the scanner unit 30 to read a document placed on the glass table 36 as image data based on a scan command of the buttons 54 of the operation panel 50. Output and operation panel 5
The control command of the display unit 52 is output to 0.

  Next, the operation of the multifunction printer 10 of the present embodiment configured as described above, particularly the operation when printing RAW data included in the RAW file saved in the memory card 42 will be described.

  FIG. 5 is a flowchart illustrating an example of a RAW data print processing routine executed by the CPU 62 of the multifunction printer 10. This routine is stored in the ROM 64 of the multifunction printer 10. Also, in this routine, the RAW file stored in the memory card 42 is selected by the user by operating the arrow key 56 on the operation panel 50 and the user presses the print button 58 on the operation panel 50. This is executed when a print command for the RAW file is input via the internal communication interface 69. When this routine is executed, the CPU 62 of the multi-function printer 10 first stores the above-described simultaneous recording JPEG file created at the same time when the RAW file selected for printing by the user is created in the memory card 42. It is determined whether it is stored (step S100). Here, whether or not the simultaneous recording JPEG file corresponding to the RAW file is stored in the memory card 42 is determined by, for example, the file name excluding the extension of each JPEG file stored in the memory card 42 and the RAW file. The file name excluding the file extension can be compared to determine whether a JPEG file having the same file name is stored in the memory card 42 or not.

  Next, when it is determined in step S100 that the simultaneous recording JPEG file is stored in the memory card 42, the data (colors) for a plurality of pixels in the JPEG compressed image data included in the simultaneous recording JPEG file. Information) is read out (step S110). At this time, in order to shorten the processing time, in the present embodiment, the data is read every other line in the vertical or horizontal direction of the image data. On the other hand, when it is determined in step S100 that the simultaneous recording JPEG file is not stored in the memory card 42, it is determined whether or not the screen nail data described above is recorded in the RAW file selected as the print target by the user. (Step S120). Here, whether screen nail data is recorded can be determined by referring to information recorded in the header of the RAW file. When the screen nail data is recorded in the RAW file, data (color information) for a plurality of pixels in the screen nail data is read (step S130). At this time, in order to shorten the processing time and the like, in this embodiment, the data is read every other line in the vertical or horizontal direction of the screen nail data. On the other hand, when the screen nail data is not recorded in the RAW file, it is determined whether or not the above-described thumbnail data is recorded in the RAW file selected as the print target (step S140). Here, whether or not thumbnail data is recorded can be determined by referring to the information recorded in the header of the RAW file. When thumbnail data is recorded in the RAW file, data (color information) for a plurality of pixels in the thumbnail data is read (step S150). At this time, in order to shorten the processing time, in the present embodiment, the data is read every other line in the vertical direction or the horizontal direction of the thumbnail data. Usually, the number of pixels of image data included in the simultaneous recording JPEG file is larger than the number of pixels of screen nail data, and the number of pixels of screen nail data is larger than the number of pixels of thumbnail data. The number of data read from the image data included in is the largest, and the number of data read from the thumbnail data is the smallest.

  After step S150, or after reading out data for a plurality of pixels in the JPEG-compressed image data included in the simultaneous recording JPEG file in step S110, or for a plurality of pixels in the screen nail data in step S130. After reading the data, it is determined whether or not the read data has been subjected to monochromatic processing (step S160). Here, the read data (color information) is expressed in the YCbCr color system, the standard deviation of the color difference Cb of all the read data is smaller than a predetermined threshold Cbref, and the color difference Cr of all the read data. When the standard deviation is smaller than a predetermined threshold value Crref, it is determined that the read data has been subjected to monochromatic processing. The threshold values Cbref and Crref are set in advance based on the standard deviations of the color differences Cb and Cr of all the data read out from the image data created by performing development processing including monochromatic processing. did.

  If it is determined in step S160 that the read data has been subjected to monochromatic processing, the read original data (such as image data included in the simultaneous recording JPEG file) is converted to a single color by another device. RAW data recorded in the RAW file is read (step S170), and each development process (interpolation process, color reproduction process, gamma correction process described later) is performed. , JPEG compression processing), the display unit 52 is controlled to display the development parameter input screen (step S180). At this time, a plurality of development parameters (for example, gamma correction values) in the development processing of other devices are read from the header of the RAW file and displayed as initial values. The user can change these development parameters as necessary using the arrow key 56 or a determination button (not shown). Subsequently, it is determined whether or not development parameters have been determined (step S190). In the present embodiment, whether or not the development parameters have been confirmed depends on whether or not a decision button (not shown) to which a function for confirming all development parameters has been assigned has been pressed after the development parameters have been appropriately changed by the user. Judgment was made. If the development parameters are not determined, the process stands by, and if the development parameters are determined, interpolation processing is executed on the read RAW data (step S200). As described above, this interpolation processing is performed because the output data from one CCD element included in the RAW data has information on only one of the RGB color elements. is there. Specifically, information on other color elements not included in one pixel is supplemented by referring to output data from CCD elements corresponding to other surrounding color elements as shown in FIG. By doing so, each pixel has information on each color element of RGB. Subsequently, color reproduction processing is performed to match the spectral characteristics of the color filter placed on the CCD element and the sensitivity characteristics of the human eye (step S210), and the output from the CCD having nonlinear device characteristics is corrected. Therefore, gamma correction processing is performed (step S220).

  Subsequently, JPEG compression processing with monochromatization is performed (step S230). Here, when JPEG compression is performed, normally, before compression, each pixel is converted from RGB values to values expressed in the YCbCr color system by a well-known conversion formula. In the present embodiment, the value of the luminance Y after conversion is adopted as a value representing the gradation of each pixel after monochromatic processing, and the color difference Cb, Cr of each pixel after conversion is used as the value of the color difference Cb, Cr. Instead of the value, the central value (which may be an average value) of the statistical distribution of the color differences Cb and Cr of the plurality of data read out in step S110, step S130, or step S150 is used for all the pixels. It was assumed that a single color that can be regarded as the same as the read original data was applied. Then, the printer ASIC 22 is instructed to execute printing on the paper S based on the image data created by the JPEG compression (step S240), and this routine is finished. The printer ASIC 22 that has received this print command controls the printer engine 24 to execute printing on the paper S based on the image data. In the present embodiment, it is assumed that printing conditions such as the paper size and the number of prints when the printer engine 24 executes printing on the paper S are predetermined (for example, the paper size is the L of the photograph). Size, number of sheets, etc.).

  In step S140, when it is determined that there is no thumbnail data (that is, when there is no image in which RAW data included in the RAW file selected as a print target is developed by another device), or in step S160. When it is determined that the image data included in the simultaneous recording JPEG file is not a single color, the raw data recorded in the raw file is read (step S250), and the development parameter of the development process is determined in the same manner as the process in step S180. The display unit 52 is controlled to display the input screen (step S260). Subsequently, similarly to the processing in step S190, it is determined whether or not the development parameter has been determined (step S270). If the development parameter has not been determined, the process stands by. If the development parameter has been determined, it is read. An interpolation process similar to the process of step S200 is performed on the RAW data (step S280). Then, a color reproduction process (step S290) similar to the process of step S210 is performed, and a gamma correction process (step S300) similar to the process of step S220 is performed. Subsequently, JPEG compression processing without monochromatic processing is executed (step S310). In the process of step S310, unlike the process of step S230, monochromatization is not performed. That is, it is treated as a color image. Then, the printer ASIC 22 is instructed to execute printing on the paper S based on the image data created by the JPEG compression (step S240), and this routine is finished. The printer ASIC 22 that has received this print command controls the printer engine 24 to execute printing on the paper S based on the image data.

  Here, the correspondence between the components of the present embodiment and the components of the present invention will be clarified. The printer unit 20 of the present embodiment corresponds to output means of the present invention, the memory card controller 44 corresponds to data reading means, the main controller 60 corresponds to control means, and the buttons 54 correspond to setting value input means. . In this embodiment, an example of the RAW data processing method of the present invention is also clarified by describing the operation of the multifunction printer 10.

  According to the multifunction printer 10 of the present embodiment described in detail above, when a RAW data print command is input via the internal communication interface 69, image data included in thumbnail data, screen nail data, or simultaneously recorded JPEG files. It is determined whether or not the data (color information) of a plurality of pixels read out from is subjected to monochromatic processing, and if the data is subjected to monochromatic processing, the read raw data is By performing development processing including monochromatic processing of the function printer 10, JPEG compressed image data is generated, and a command is output to the printer unit 20 to perform printing processing based on the JPEG compressed image data. In this way, development processing including monochrome processing of the multifunction printer 10 can be performed on the RAW data for which the user has instructed monochrome processing in another device. In addition, it is possible to use thumbnail data and screen nail data that are often saved together with RAW data created when RAW data is saved in another device (for example, a digital camera). Further, when the simultaneous recording JPEG file is created, the simultaneous recording JPEG file can be effectively used. Furthermore, in order to determine whether or not the monochrome processing has been performed using the color information of the data developed by the other device such as thumbnail data, the RAW data that is the target of the printing processing is the single color of the other device. It is possible to accurately determine whether or not the processing has been performed.

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  For example, in the above-described embodiment, it is determined whether or not the image data is a single color using the color differences Cb and Cr that are the color information of the JPEG compressed image data. If possible, color information other than the color differences Cb and Cr may be used. For example, the values of the three primary colors RGB of light may be used. In this case, as a condition that can be determined to be a single color, the standard deviation of the color difference Cb is smaller than a predetermined threshold Cbref for all the data (pixels) read in step S110, step S130, or step S150, and the color difference Cr Instead of the condition that the standard deviation is smaller than the predetermined threshold value Crref, all the data (pixels) read in step S110, step S130 or step S150 are converted from YCbCr to RGB and the values of R / G and B / G are changed. It is also possible to obtain a statistic of the obtained value and use a condition that the standard deviation is equal to or less than a predetermined threshold value. Here, the predetermined threshold value is obtained by reading a plurality of data from image data created by performing development processing including monochromatic processing, converting all the read data from YCbCr to RGB, and R / G, B / G. It is good also as what is calculated | required and it presets each based on the standard deviation.

  In the embodiment described above, the data read in step S110, step S130, and step S150 is read at every position line in the vertical or horizontal direction. However, any reading method may be used as long as the data for a plurality of pixels can be read. May be. For example, every other pixel may be read out, or data of pixels selected at random may be read out. Further, the data may be read out until the same number of data (for example, 1000) set in advance within a range not exceeding the number of pixels expected to be included in the thumbnail data, or thumbnail data or screen nail data. The data may be read out until the number of data set in advance for each image data included in the simultaneous recording JPEG file is reached.

  In the above-described embodiment, it is determined whether the image data, screen nail data, and thumbnail data included in the JPEG file are stored in the memory card 42 or recorded in the RAW file in that order, and any data is stored. Alternatively, when it is determined that data is recorded, data (color information) for a plurality of pixels is read from the data, but it is determined whether the data is stored in the memory card 42 or recorded in the RAW file. The order to do is not limited to this order. For example, it is first determined whether thumbnail data is recorded in a RAW file, then it is determined whether screen nail data is recorded in the RAW file, and finally image data included in the JPEG file is stored. It may be determined whether it is stored in the memory card 42 or not.

  In the above-described embodiment, monochromatic processing is executed in the JPEG compression processing. However, the timing for executing monochromatic processing is not limited to the time of JPEG compression processing. For example, it may be executed when color reproduction processing is performed, or may be performed when gamma correction processing is performed.

  In the above-described embodiment, the RAW file and the simultaneously recorded JPEG file are read from the memory card 42. However, any file may be read as long as these files are recorded. For example, these files may be received from the digital camera by infrared communication and read from the temporarily stored memory 66, or those files may be read from the memory in the digital camera connected by USB connection. Alternatively, these files may be received from another computer on a computer network (for example, the Internet) and read from the memory 66 temporarily stored. In these cases, an infrared communication board, a USB controller, a network interface board, and the like for realizing infrared communication, USB connection, and network connection are provided.

  In the above-described embodiment, the application of the present invention to the multifunction printer 10 that prints out has been described. However, the present invention may be applied to an apparatus that displays and outputs image data. For example, you may apply to a photo storage viewer, a digital camera, etc.

  In the above-described embodiment, the full-color printer 10 that employs an ink jet method and uses ink as a colorant is used. However, a color laser printer that employs an electrophotographic method and uses toner as a colorant, or a thermal transfer method that employs color. A color printer using an ink ribbon as the agent may be used. Also, a printing apparatus such as a FAX machine or a copier may be used.

FIG. 2 is an external view and a block diagram of the multifunction printer 10. Explanatory drawing of the file recorded on the memory card. Explanatory drawing of a RAW file. Explanatory drawing of CCD. 6 is a flowchart illustrating an example of a RAW data print processing routine.

Explanation of symbols

  10 Multifunction Printer, 12 Bus, 20 Printer Unit, 22 Printer ASIC, 24 Printer Engine, 30 Scanner Unit, 32 Scanner ASIC, 34 Scanner Engine, 40 Memory Card Slot, 42 Memory Card, 44 Memory Card Controller, 50 Operation Panel, 52 display unit, 54 buttons, 56 arrow keys, 58 print button, 60 main controller, 62 CPU, 64 ROM, 66 RAM, 68 flash memory, 69 internal communication interface, 70 CCD, 70a window, 90a RAW file of subject 1 90b Subject 1 JPEG file, 90c Subject 2 RAW file, 90d Subject 3 RAW file, 92 header, 94 RAW data, 96 thumbnail Data, 98 screen nail data, S paper.

Claims (4)

A RAW data processing device for processing RAW data,
Data acquisition means for acquiring RAW data and development data subjected to development processing based on the RAW data;
When there is an output request related to the RAW data, whether or not the development data is subjected to a development process including a monochromatic process based on a color difference deviation of each or all of the pixels of the development data And developing means for performing development processing including monochrome processing on the RAW data if the development data has been subjected to development processing including monochrome processing;
An output means for performing a predetermined output process for an image obtained by performing the development process on the RAW data;
RAW data processing apparatus. The developing means determines that the development data has undergone a development process including a monochromatic process when the standard deviation of the pigment of each pixel of a part or all of the development data is smaller than a predetermined threshold value. To
The RAW data processing apparatus according to claim 1. A RAW data processing method by computer software for performing predetermined output processing on RAW data,
(A) obtaining RAW data and development data subjected to development processing based on the RAW data;
(B) When there is an output request related to the RAW data, the development data includes a monochromatic process based on a deviation in color difference of each or all of the pixels of the development data acquired in step (a). A step of determining whether or not processing has been performed, and performing development processing including monochrome processing on the RAW data if the development data has been subjected to development processing including monochrome processing When,
(C) performing a predetermined output process on the image subjected to the development process in the step (b);
RAW data processing method. On the computer,
(A) obtaining RAW data and development data subjected to development processing based on the RAW data;
(B) When there is an output request related to the RAW data, the development data includes a monochromatic process based on a deviation in color difference of each or all of the pixels of the development data acquired in step (a). A step of determining whether or not processing has been performed and, if the development data has been subjected to development processing including monochrome processing, performing development processing including monochrome processing on the RAW data When,
(C) performing a predetermined output process on the image subjected to the development process in the step (b);
Program for the execution.

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