KR100826943B1 - Method and apparatus for processing jpeg image, and record media recored program for realizing the same - Google Patents

Abstract

In order to reduce the time and memory required when editing a JPEG-compressed still image, a JPEG image processing method includes: first data in which one restart marker is inserted for each first header and one basic block (Minimum Coded Unit, MCU); Generating a first JPEG image file comprising: selecting a predetermined region of the first JPEG image; generating image size information and a second header of the predetermined region; and corresponding to the predetermined region. And generating the second JPEG image file corresponding to the predetermined area by combining the second data including the image data and the second header. The time required for image editing processing to cut a portion of a JPEG image or to paste two JPEG images is reduced, and when used in a portable terminal with limited resources such as memory, the memory can be effectively saved.

Description

TECHNOD AND APPARATUS FOR PROCESSING JPEG IMAGE, AND RECORD MEDIA RECORED PROGRAM FOR REALIZING THE SAME}

1 shows an original image and a specific region cut out of the original image.

2 is a flowchart illustrating a conventional JPEG image processing method for generating a JPEG image corresponding to a specific region cut out from an original image.

3 shows a general JPEG file structure.

4 is a diagram illustrating marker codes used in a general JPEG file interchange format (JFIF).

5 is a block diagram illustrating an image processing apparatus used in a portable terminal according to an embodiment of the present invention.

6 is a block diagram illustrating the JPEG image processor of FIG. 5 according to an embodiment of the present invention.

7 illustrates a JPEG original image file structure having a predetermined format according to an embodiment of the present invention.

FIG. 8 shows a JPEG file structure corresponding to an image of a specific area cut out from the original image of FIG. 7.

9 illustrates a first JPEG original image file structure having a predetermined format according to an embodiment of the present invention.

10 illustrates a second JPEG original image file structure having a predetermined format according to an embodiment of the present invention.

FIG. 11 illustrates a JPEG file structure generated by combining the JPEG original images of FIGS. 9 and 10.

12 is a flowchart illustrating a JPEG image processing method according to an embodiment of the present invention.

13 is a block diagram illustrating a portable terminal according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

500: image processing unit 530: JPEG encoder

550: JPEG image processing unit 552: JPEG parsing module

554: editing control unit 555: image editing module

556: JPEG editing module 605: DRI marker

607, 707: Restart interval

610, 710, 810, 910, 1010, 1110: header of JPEG image file

The present invention relates to a JPEG image processing method, an image processing apparatus, and a recording medium on which a program for implementing the same is recorded. More particularly, the present invention relates to a JPEG image processing method, an image processing apparatus, and an implementation thereof. The present invention relates to a recording medium having recorded thereon a program.

Recently, most mobile terminals such as mobile phones and PDAs have camera functions. Portable terminals have limitations such as memory capacity, processing speed, and resources when compared to personal computers.

Image data is stored in a compressed state for efficient storage and transmission. JPEG is a standard for image compression set by the Joint Photographic Experts Group and is the most widely used file format for compressing still image images such as photographs due to its high compression efficiency.

1 is a view showing an original image and a specific region cut out from an original image, and FIG. 2 is a flowchart illustrating a conventional JPEG image processing method for generating a JPEG image corresponding to a specific region cut from the original image. to be. Cropping or pasting a specific portion of a JPEG image is conventionally performed in the same order as in FIG. 2.

Referring to FIG. 2, first, data of a compressed original JPEG image is read (step 201), and data of the read JPEG image is decoded (step 203) to a desired specific area of the original image area 100. Raw image data of step 10) (step 205), and then re-encode the raw image data corresponding to the desired particular area 10 (step 207) to the desired specific area 10; JPEG image data is generated (step 209).

In this case, a buffer equal to the size of the raw image data is required to obtain the raw image data, and the time required to decode the read original JPEG image data and again encode the raw image data corresponding to the desired specific region 10. There is a disadvantage in that it takes more time to take.

Therefore, the first object of the present invention to solve the problems of the prior art as described above is JPEG image processing to reduce the time and memory required when editing a still image compressed with JPEG in a portable terminal of limited resources such as memory To provide a way.

It is also a second object of the present invention to provide a recording medium having a program recorded thereon for implementing a method for reducing the time and memory required when editing a still image compressed with JPEG in a portable terminal having limited resources such as a memory. .

Further, a third object of the present invention is to provide an image processing apparatus for reducing the time and memory required when editing a still image compressed with JPEG in a portable terminal with limited resources such as a memory.

In accordance with an aspect of the present invention, there is provided a method of processing a JPEG image according to an aspect of the present invention, wherein a restart marker is inserted in each of a first header and one basic block (Minimum Coded Unit, MCU). Generating a first JPEG image file comprising data; Selecting a predetermined area of the first JPEG image; Generating image size information and a second header of the predetermined area; And generating a second JPEG image file corresponding to the predetermined area by adding the second header and the second data including image data corresponding to the predetermined area. In the first header, a restart interval of a DRI marker may be set to '1'. In the second header, a restart interval of the DRI marker may be set to one.

In addition, the JPEG image processing method according to another aspect of the present invention for achieving the first object of the present invention is that one restart marker is disposed for each of the first header and one basic block (Minimum Coded Unit, MCU) Generating a first JPEG image file comprising first data; Generating a second JPEG image file including a second header and second data in which the one restart marker is disposed for each one basic block; Selecting a first predetermined area of the first JPEG image to be edited; Selecting a second predetermined area of the second JPEG image to be edited; Generating image size information and a third header of the first and second predetermined regions; And generating third JPEG image files corresponding to the first and second predetermined regions by combining the third header and the third data including the image data corresponding to the first and second predetermined regions. .

In addition, a program of instructions that can be executed by a digital processing apparatus for processing a JPEG image according to an aspect of the present invention for achieving the above-described second object of the present invention is tangibly implemented and read by the digital processing apparatus. The recording medium may include generating a first JPEG image file including a first header and first data including one restart marker for each basic block (Minimum Coded Unit, MCU); Generating a second JPEG image file including a second header and second data in which the one restart marker is disposed for each one basic block; Selecting a first predetermined area of the first JPEG image to be edited; Selecting a second predetermined area of the second JPEG image to be edited; Generating image size information and a third header of the first and second predetermined regions; And generating third JPEG image files corresponding to the first and second predetermined regions by combining the third header and the third data including the image data corresponding to the first and second predetermined regions. .

Further, a program of instructions that can be executed by a digital processing apparatus for processing a JPEG image according to another aspect of the present invention for achieving the above-described second object of the present invention is tangibly implemented and read by the digital processing apparatus. The recording medium may include generating a first JPEG image file including a first header and first data including one restart marker for each basic block (Minimum Coded Unit, MCU); Generating a second JPEG image file including a second header and second data in which the one restart marker is disposed for each one basic block; Selecting a first predetermined area of the first JPEG image to be edited; Selecting a second predetermined area of the second JPEG image to be edited; Generating image size information and a third header of the first and second predetermined regions; And generating third JPEG image files corresponding to the first and second predetermined regions by combining the third header and the third data including the image data corresponding to the first and second predetermined regions. .

In addition, an image processing apparatus according to an aspect of the present invention for achieving the above-described third object of the present invention includes one first header and one basic block (Minimum Coded Unit, MCU) having a restart interval of 1; A JPEG parsing module for reading the first data from a first JPEG image file including first data into which a restart marker is inserted; And a second header including image size information of a predetermined area selected from the read first data and a restart interval 1, and generating second data including the image data corresponding to the predetermined area and the second header. And an image editing module for generating a second JPEG image file corresponding to the predetermined area. The image editing module includes an editing control module for selecting a predetermined area from the read first data; And generating a second header including image size information of the predetermined area and the restart interval 1, and adding the second header and the second header including image data corresponding to the predetermined area to correspond to the predetermined area. It may include a JPEG editing module for generating a second JPEG image file.

In addition, an image processing apparatus according to another aspect of the present invention for achieving the above-described third object of the present invention includes one first header and one basic block (Minimum Coded Unit, MCU) having a restart interval of 1; Read a first JPEG image file including first data on which a restart marker is placed, a second header with a restart interval set to 1, and second data on which one restart marker is placed per one basic block; A JPEG parsing module for reading a second JPEG image file comprising a; And a third header including image size information and restart interval 1 of the first predetermined region selected from the first JPEG image and the second predetermined region selected from the second JPEG image, and generating the first and second predetermined images. And an image editing module configured to generate third JPEG image files corresponding to the first and second predetermined regions by combining the third data and the third header including image data corresponding to a region. The image editing module may include an editing control module configured to select the first predetermined area and the second predetermined area from the read first data and the second data, respectively; And generating the third header including the image size information of the first and second predetermined regions and the restart interval 1, and including the image data corresponding to the first and second predetermined regions. And a JPEG editing module that adds the third header to generate a third JPEG image file corresponding to the first and second predetermined regions.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In describing the drawings, similar reference numerals are used for similar components.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. Hereinafter, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

In general, RGB images captured by an image sensor of a camera mounted on a portable terminal are converted into YCbCr images through gamma correction and color correction, and then encoded into a JPEG (Joint Photographic Experts Group) file format. (encoded) and stored.

FIG. 3 shows a general JPEG file structure, and FIG. 4 is a diagram showing marker codes used in a general JPEG file structure (JFIF).

Referring to FIG. 3, a JPEG file may be largely classified into a header 610 and data 620. Header 610 includes image information such as SOI (Start Of Image) 601, image width and height 603, quantization table and Huffman table, DRI (Define Restart Interval, 605, 607), EOI (End Of Image, 630), and the like. The data 620 includes compressed still image data. Since the header contains information at the time of encoding, the compressed data 620 is decoded based on the header information at the time of decoding.

The JPEG file interchange format (JFIF), which is a JPEG file structure, is composed of a plurality of blocks. Each of the plurality of blocks is separated by a marker. Markers provide a variety of information about compressed data and are two-byte data starting with '0xFF'.

As shown in FIG. 4, the JFIF, which is a JPEG file structure, includes Start of Image (SOI), JFIF Marker, Define Quantization Tables (DQT), Start Of Frame (SOF), Define Huffman Tables (DHT), and Start Of Scan (SOS). ), A plurality of blocks such as a DRI (Define Restart Interval), a RST (Restart marker), scan data, and an End Of Image (EOI). Since the JPEG file structure (JFIF) is widely known in the JPEG technology field, a detailed description thereof will be omitted.

The scan data follows the SOS, and the scan data is data generated through color model conversion, DCT, quantization, and Huffman coding of RGB color information of pixels of an image sensor.

Restart Marker (RST) is a marker used to recover the damaged JPEG file as much as possible. Since JPEG encodes a difference value between adjacent image data values, if the image data is damaged in the middle, all the image data behind the damaged image data is also damaged. In order to prevent damage to all such JPEG image data, a restart marker (RST) is placed in the scan data to restart decoding of the JPEG for each designated block.

A restart interval 607 is defined using the DRI marker 605 before the scan data begins. If the restart interval defined in the DRI marker 605 is greater than zero, there is a restart marker for each basic block (Minimum Coded Unit, MCU) by the interval. For example, as shown in FIG. 3, if the restart interval 607 is 7, there is a restart marker RST for every seven MCUs.

5 is a block diagram illustrating an image processing apparatus used in a portable terminal according to an embodiment of the present invention, and FIG. 6 is a block diagram illustrating the JPEG image processing unit of FIG. 5 according to an embodiment of the present invention. FIG. 7 illustrates a JPEG original image file structure having a predetermined format according to an embodiment of the present invention, and FIG. 8 illustrates a JPEG file structure corresponding to an image of a specific region cut out from the original image of FIG. 7. 9 illustrates a first JPEG original image file structure having a predetermined format according to an embodiment of the present invention, and FIG. 10 illustrates a second JPEG original image file structure having a predetermined format according to an embodiment of the present invention. FIG. 11 illustrates a JPEG file structure generated by combining the JPEG original images of FIGS. 9 and 10.

Referring to FIG. 5, the image processing apparatus 500 includes an image quality corrector 520, a JPEG encoder 530, and a JPEG image processor 550.

The image quality correction unit 520 receives the RGB image data output from the image sensor 510, corrects the image quality, and converts the image into luminance data Y and color data Cb and Cr. In detail, the image quality correction unit 520 displays the RGB image data through white defect correction, gamma correction, color correction, and / or auto white balance. Calibrate The image sensor 510 may be a complementary metal-oxide semiconductor image sensor. Alternatively, the image sensor 510 may be a charge coupled device (CCD) image sensor.

The JPEG encoder 530 receives the converted YCbCr image data and performs DCT (Discrete Cosine Transform) transform, quantization, and Huffman coding to generate a JPEG original image file as shown in FIG. 7. .

When encoding a JPEG image, it is encoded in a basic block (MCU) unit, and in decoding, it is decoded in a basic block (MCU) unit. The size of the basic block (MCU) is determined by the sampling method. For example, if the sampling period is 1: 1: 1 as in YUV444, the base block (MCU) is 8 pixels by 8 pixels; if the sampling period is 2: 1: 1 as in YUV422, the base block (MCU) is This is 16 pixels by 8 pixels.

Since the basic block (MCU) after Huffman encoding is not a byte (8-bit) unit, for example, 20-bit, etc., the JPEG encoder 530 attaches '0000' to 20 bits to make it 24-bit, which is a byte unit. Paste it.

The JPEG encoder 530 sets the restart interval 707 of the DRI marker 605 of the header 710 of the generated JPEG original image file to 1 to show every basic block (MCU) as shown in the data 620. Put a restart marker (RST) on each side.

The memory 540 stores the still image compressed by the JPEG encoder. The memory 540 may be separately installed outside the image processing apparatus 500 or may be installed to be included in the image processing apparatus 500.

The JPEG image processing unit 550 receives the generated JPEG original image file, parses image data of an image area to be edited, and modifies the header to have a header corresponding to the image size of the parsed image data. The modified JPEG image file is generated by combining with the image data.

The controller 600 controls the overall operations of the portable terminal, such as the baseband processor of the portable terminal, and controls the operations of the image sensor 510 and the image processor 500.

Here, the JPEG image processor 550 may be implemented to be included in the controller 560. Although not shown in the drawing, the image processing apparatus 500 may further include a scaler for scaling the image data having the size and the number of pixels that can be displayed on the display unit 1310 (see FIG. 13).

Referring to FIG. 6, the JPEG image processor 550 includes a JPEG parsing module 552 and an image editing module 555. The image editing module 555 includes an editing control module 554 and a JPEG editing module 556.

The JPEG parsing module 552 reads the image data 620 of the generated JPEG original image file from the memory 540 in MCU units with reference to the restart interval 707 of the restart marker RST. Specifically, the JPEG parsing module 552 reads JPEG original image data when it wants to crop an image of a specific area 625 from a JPEG original image, for example, the JPEG original image of FIG. 7. In addition, the JPEG parsing module 552 may add two JPEG original images, for example, the first JPEG original image of FIG. 9 and the second JPEG original image of FIG. 10. Data is read from the memory 540.

The edit control module 554 may use the MCU unit JPEG original image data 620 provided from the JPEG parsing module 552 to cut out an image of a specific area from a JPEG original image, for example, the JPEG original image of FIG. 7. Select and crop the image data of the specific region 625 to be edited. In addition, the edit control module 554 may provide two JPEG original images, for example, the first JPEG original image of FIG. 9 and the second JPEG original image of FIG. 10, provided from the JPEG parsing module 552. The first JPEG original image data 920 of FIG. 9 and the second JPEG original image data 1020 of FIG. 10 are added together. In addition, the edit control module 554 may apply the first and second JPEG originals provided from the JPEG parsing module 552 to paste the first and second image regions selected from the first and second JPEG original images, respectively. The data of the first image area and the data of the second image area of the image data are summed. The edit control module 554 provides the edited JPEG image data and the size information of the edited JPEG image to the JPEG editing module 556 as described above.

The JPEG editing module 556 modifies the header of the corresponding JPEG original image read from the memory 540 based on the size information of the edited JPEG image provided from the editing control module 554, and edits the header and the edited header. The JPEG image data is summed and stored in the memory 540. Specifically, when the JPEG editing module 556 wants to cut an image of a specific area from a JPEG original image, for example, the JPEG original image of FIG. 7, the JPEG editing module 556 may use the size information of the JPEG image cut out from the JPEG original image of FIG. 7. The image size of the header of the JPEG original image of FIG. 7 is modified based on 803 to add the modified header 810 having the modified image size 803 and the cropped JPEG image data 625 to the memory 540. ). In addition, the JPEG editing module 556 may apply the size of the JPEG original image of FIG. 9 in the case of pasting two JPEG original images, for example, the first JPEG original image of FIG. 9 and the second JPEG original image of FIG. 10. JPEG image edited by adding the modified header 1110 having the modified image size 1103 and the pasted JPEG image data 910, 920 by adding the information 903 and the size information 1003 of the JPEG original image of FIG. A file is generated and stored in the memory 540.

12 is a flowchart illustrating a JPEG image processing method according to an embodiment of the present invention.

12, first, a JPEG original image file is generated in a predetermined format according to an embodiment of the present invention (step 1210). In the JPEG original image file having a predetermined format according to an embodiment of the present invention, as shown in FIG. 7, the basic interval (MCU) is set by setting the restart interval 607 of the DRI marker 605 in the header to 1. Each contains an RST marker. In the header 710 of FIG. 7, "FF DD" is a DRI marker, and "00 01" means that an RST exists for each MCU.

As described above, by inserting the RST marker in every basic block (MCU), the basic block (MCU) and the RST marker can be treated as one compressed JPEG block. That is, since it can be treated as an independent JPEG block of N pixels x M pixels, a specific area of the JPEG original image can be arbitrarily cut or pasted as described below.

Referring back to FIG. 12, an area to be edited is selected from the JPEG original image file having the predetermined format (step 1220). When the image of a specific region is to be cut out from the JPEG original image, the region to be edited represents a specific region which is part of the JPEG original image. Alternatively, in the case of pasting two JPEG original images, for example, the first JPEG original image of FIG. 9 and the second JPEG original image of FIG. 10, the region to be edited corresponds to the entire first JPEG original image of FIG. 9. The entire second JPEG original image of FIG. 10 is shown. Alternatively, for example, when the first image area selected from the first JPEG original image of FIG. 9 and the second image area selected from the second JPEG original image of FIG. 10 are pasted, the region to be edited is the first image. Region and a second image region.

A JPEG corresponding to the selected region by modifying image size information of the header based on an image size indicating a width and a height of an image corresponding to the selected region, and merging the modified header and image data of the selected region. Create an image file (step 1230). Since the JPEG image file of the selected region uses the same compression method as the JPEG original image and only the size of the image is modified, as shown in FIG. 8, the modified header 810 of the JPEG image file of the selected region is an image. Only the size 803 is modified, and the RST marker is attached to every basic block (MCU) by setting the restart interval 707 of the DRI marker 605 to 1, like the header 710 of the JPEG original image file. That is, the modified header 810 includes a size 803 of the image corresponding to the width and height of the image of the selected area.

Conventionally, JPEG original image data which has been read in order to cut or paste a portion of a JPEG image is decoded, and JPEG image data corresponding to a specific area desired is decoded, but the present invention does not decode JPEG original image data. It does not encode JPEG image data corresponding to a specific area of interest, but instead cuts and pastes a portion of a JPEG image by applying an image processing method using the JPEG file format, such as a mobile phone with limited resources such as memory. It can be effectively applied to portable terminals.

13 is a block diagram illustrating a portable terminal according to an embodiment of the present invention.

Referring to FIG. 13, a portable terminal according to an exemplary embodiment of the present invention may include an image sensor 510, an image processor 500, a display unit 1310, a wireless transceiver 1320, a memory 1330, and an input unit 1340. , An audio processor 1350 and a controller 600. Since the image sensor 510 and the image processor 500 have been described with reference to FIGS. 5 and 6, description thereof will be omitted.

The radio transceiver 1320 performs a radio communication function by receiving a radio frequency signal through an antenna and converting the radio frequency signal into a baseband signal or converting the baseband signal into a radio frequency signal and transmitting through the antenna.

The audio processor 1350 outputs the audio signal output from the wireless transceiver 1320 through the speaker 1352 or the earphone 1354 or provides an audio signal input through the microphone to the wireless transceiver 1320. .

The input unit 1340 receives a number, letters, and / or a menu from a user like a general mobile communication terminal. The input unit 1340 may be implemented as a keypad or a touch screen equipped with a plurality of key buttons.

The display unit 1310 may control various types of data including image data stored in the memory 1330 or data input through the input unit 1340 under the control of the control unit 600. Organic Light Emitting Diodes).

The memory 1330 stores a plurality of programs for controlling the operation of the portable terminal, data generated by program execution, and / or video data.

The controller 600 controls the overall operation of the portable terminal. The controller 600 retrieves various data stored in the memory 1330 and provides the data to the display unit 1310 or controls the operations of the image sensor 510 and the image processor 500. In FIG. 13, the image processor 500 and the controller 600 are configured as separate blocks, but the image processor 500 and the controller 600 may be integrated into one chip.

According to the JPEG image processing method and the image processing apparatus as described above, after setting the restart interval of the JPEG image file to 1, a portion of the JPEG image is cut or two JPEG images are attached to generate a new JPEG image file.

Therefore, in order to cut or paste a portion of the conventional JPEG image, there is no need to read and decode the JPEG image data and to encode JPEG image data corresponding to a specific area desired. As a result, the time required for image editing processing to cut a part of a JPEG image or to paste two JPEG images is reduced.

In addition, since a process of reading and decoding JPEG image data is unnecessary in order to cut or paste a portion of a conventional JPEG image, a buffer for storing raw image data obtained as a result of the decoding is unnecessary. As a result, when used in a portable terminal with limited resources such as memory, memory can be effectively saved.

Although described with reference to the embodiments above, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

Claims (14)

Generating a first JPEG image file including first data and first data into which one restart marker is inserted for each basic code unit (Minimum Coded Unit, MCU); Selecting a predetermined area of the first JPEG image; Generating image size information and a second header of the predetermined area; And And generating a second JPEG image file corresponding to the predetermined area by adding the second header and the second data including image data corresponding to the predetermined area. The method of claim 1, wherein the first header has a restart interval of a DRI marker. The method of claim 2, wherein the second header has a restart interval of the DRI marker set to one. Claim 4 was abandoned when the registration fee was paid. The method of claim 1, And the first JPEG image file has a JPEG File Interchange Format (JFIF) file structure. Claim 5 was abandoned upon payment of a set-up fee. The method of claim 1, wherein the JPEG image processing method is used in a portable terminal. Generating a first JPEG image file including first data and first data in which one restart marker is disposed for each basic block (Minimum Coded Unit, MCU); Generating a second JPEG image file including a second header and second data in which the one restart marker is disposed for each one basic block; Selecting a first predetermined area of the first JPEG image to be edited; Selecting a second predetermined area of the second JPEG image to be edited; Generating image size information and a third header of the first and second predetermined regions; And JPEG, comprising: generating a third JPEG image file corresponding to the first and second predetermined areas by combining the third header and the third data including image data corresponding to the first and second predetermined areas; Image processing method. The method of claim 6, wherein the first header and the second header have a restart interval of a DRI marker. 8. The method of claim 7, wherein the third header has a restart interval of the DRI marker set to one. As a recording medium in which a program of instructions executable by a digital processing apparatus for processing a JPEG image is tangibly implemented and can be read by the digital processing apparatus, Generating a first JPEG image file including first data and first data into which one restart marker is inserted for each basic code unit (Minimum Coded Unit, MCU); Selecting a predetermined area of the first JPEG image; Generating image size information and a second header of the predetermined area; And And generating a second JPEG image file corresponding to the predetermined area by combining the second data and the second header including image data corresponding to the predetermined area. As a recording medium in which a program of instructions executable by a digital processing apparatus for processing a JPEG image is tangibly implemented and can be read by the digital processing apparatus, Generating a first JPEG image file including a first header and first data in which one list marker is disposed for each basic code unit (Minimum Coded Unit, MCU); Generating a second JPEG image file including a second header and second data in which the one restart marker is disposed for each one basic block; Selecting a first predetermined area of the first JPEG image to be edited; Selecting a second predetermined area of the second JPEG image to be edited; Generating image size information and a third header of the first and second predetermined regions; And And generating a third JPEG image file corresponding to the first and second predetermined areas by combining the third header and the third data including the image data corresponding to the first and second predetermined areas. The recorded recording medium. Read the first data from a first JPEG image file comprising a first header with a restart interval set to 1 and first data into which one restart marker is inserted for each basic code unit (Minimum Coded Unit, MCU). JPEG parsing module; From the read first data, a second header including image size information of a predetermined region and a restart interval 1 is generated, and the second header including image data corresponding to the predetermined region is combined with the second header. And an image editing module for generating a second JPEG image file corresponding to the predetermined area. The image editing module of claim 11, wherein the image editing module is An editing control module for selecting a predetermined area from the read first data; And A second header including image size information of the predetermined area and the restart interval 1 is generated, and the second header including image data corresponding to the predetermined area and the second header are added to correspond to the predetermined area. And a JPEG editing module for generating a second JPEG image file. Read a first JPEG image file that includes a first header with a restart interval set to 1 and first data with one restart marker placed per one basic block (Minimum Coded Unit, MCU), and the restart interval is A JPEG parsing module for reading a second JPEG image file including a second header set to 1 and second data in which the one restart marker is disposed for each one basic block; And Generate a third header including image size information and a restart interval 1 of the first predetermined area selected from the first JPEG image and the second predetermined area selected from the second JPEG image, and generating the first and second predetermined areas And an image editing module configured to generate third JPEG image files corresponding to the first and second predetermined regions by combining the third data and the third header including image data corresponding to the first and second predetermined regions. The image editing module of claim 13, wherein the image editing module is An editing control module for selecting the first predetermined area and the second predetermined area from the read first data and second data, respectively; And Generating the third header including image size information of the first and second predetermined regions and the restart interval 1, and including the third data including image data corresponding to the first and second predetermined regions; And a JPEG editing module that adds the third header to generate a third JPEG image file corresponding to the first and second predetermined regions.

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