JP3230291B2 - Image reproducing apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reproducing apparatus and an image reproducing apparatus.
About the method .

[0002]

2. Description of the Related Art Electronic still cameras initially used analog recording, but digital recording has been used due to improvements in computers and their image processing capabilities and increases in the recording capacity of hard disk drives and solid-state memory devices. It became so.

Further, stimulated by the development and commercialization of a high-definition television system, a high-definition still image recording device for printing and news is required, and a high-resolution CCD of 1 million pixels or more is required.
Imaging devices are also being put to practical use.

FIG. 2 is a schematic block diagram of a conventional example of a digital still camera using a high-resolution image pickup device having more than one million pixels. A digital camera using an image sensor having about 200,000 to 400,000 pixels
The difference from a still camera is that the output data of the image sensor can be directly recorded on a recording medium so that fine color correction and the like can be performed during playback, taking advantage of the large number of pixels of the image sensor. is there.

In FIG. 2, reference numeral 10 denotes a high-resolution image sensor having approximately 1300 horizontal pixels and approximately 1000 vertical pixels. The output of the high-resolution image sensor is converted into a digital signal by an A / D converter 12 and stored in a buffer memory. 14 is stored. An output of the buffer memory 14 is a camera process circuit 16 that performs camera signal processing such as γ correction, white balance, and luminance (Y) / color difference (C) conversion;
The voltage is applied to the a contact of the switch 20. The compression circuit 18
For example, it is a circuit of an irreversible compression system such as a JPEG system baseline process, and compresses the output of the camera process circuit 16 to about 1/20 to 1/50, and the output is applied to the contact b of the switch 20. .

The switch 20 selects the output of the buffer memory 14 or the output of the compression circuit 18 and applies it to the recording medium 22. The recording medium 22 includes a hard disk device, a flash memory device, and the like.

When the output data itself of the image sensor 10, ie, the raw image data is recorded on the recording medium 22, the switch 20 is connected to the contact a, and when the compressed data of the Y / C data processed by the camera is recorded, the switch 20 is connected. Reference numeral 20 is connected to the contact b. Of course, in the former case, information indicating that the data is raw image data is recorded together with the recording medium 22 as a header.
In the latter case, information indicating that the data is compressed Y / C data is recorded on the recording medium 22 together with a header. In the latter case, the header may also include identification information such as an image number and shooting conditions, and information at the time of compression.

FIG. 3 is a schematic block diagram of a reproducing apparatus for transferring the information recorded on the recording medium 22 to a computer and reproducing and outputting the information to a high-definition monitor.

The information read from the recording medium 22 is transferred to the buffer memory 26 through the input interface 24, and the header information is transferred to the CPU 30 through the input interface 24. The CPU 30 can determine whether it is raw image data or compressed Y / C data based on the input header, and controls the memory control circuit 28 and other circuits according to the determination result.

In the case of raw image data, the CPU 30 switches the switch 32 to a contact a and transfers the data stored in the buffer memory 26 to the output interface 34 via the switch 32. The output interface 34
It is connected to a computer that performs gamma correction, white balance adjustment, and RGB conversion.

In the case of compressed Y / C data, the data stored in the buffer memory 26 is read out to a decompression circuit 36.
The expansion circuit 36 performs expansion processing corresponding to the compression processing of the compression circuit 18 to restore the Y / C data. The RGB conversion circuit 38 converts the output of the decompression circuit 36 into the RGB format and temporarily stores the output in the image memory 40.

When the CPU 30 connects the switch 32 to the contact b, the image data stored in the image memory 40 can be read out to the output interface 34 via the switch 32 and can be transferred to an external computer or the like.

The image data stored in the image memory 40 is read out and applied to a D / A converter 42. D
A / A converter 42 converts digital RGB signals to analog RGB signals.
The signal is converted to a B signal, and the output is output to the outside via the driver circuit 44 and the output terminal 46. For example, a high-resolution color monitor is connected to the output terminal 46. Thereby, the recorded image can be reproduced and displayed on the spot and confirmed.

[0014]

In the prior art, if an image taken outdoors was to be checked on the spot, a high-resolution color monitor would have to be prepared, which would result in a large-scale apparatus configuration. is not.

An object of the present invention is to provide an image reproducing apparatus and an image reproducing method capable of easily confirming image information recorded in various recording formats .

[0016]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
In addition, the image reproducing device according to the one invention is at least
First recording method for directly encoding and recording the signal of the image sensor
The recording format and the signal of the image sensor
Recording by selectively using a second recording format for converting and recording
An image reproducing apparatus for reproducing image information recorded on a medium.
A reading means for reading image information from the recording medium.
And the recording format of the image information read from the recording medium.
Determining means for determining, and an image read from the recording medium.
The image information is adaptively thinned out according to the output of the determination means.
Thinning means for converting the number of pixels into a predetermined number of pixels,
Storage means for storing image information processed by the storage means
Image display means for displaying image information stored in the storage means.
And supplying means for supplying to the

An image reproducing apparatus according to one aspect of the present invention.
Is to encode and record at least the signal of the image sensor.
The first recording format to be recorded and the signal of the image sensor
And select the second recording format for encoding and recording
To reproduce image information recorded on a recording medium
An image reproducing apparatus for reading image information from the recording medium.
Reading means for outputting the image information, and image information to be read from the recording medium.
Discriminating means for discriminating the recording format of the report, and the output of the discriminating means.
With respect to image information read from the recording medium according to the force.
Processing means for performing the predetermined color processing, and
Image information read from the recording medium by
Is predetermined for the image information processed by the processing means.
A thinning-out unit for thinning-out processing so that the number of pixels becomes
Storage for storing image information processed by the thinning means
Means for displaying image information stored in the storage means
And supplying means for supplying to the means .

An image reproducing method according to one aspect of the present invention.
Is to encode and record at least the signal of the image sensor.
The first recording format to be recorded and the signal of the image sensor
And select the second recording format for encoding and recording
To reproduce image information recorded on a recording medium
An image reproducing method, comprising reading image information from the recording medium.
Read out step, and image information read out from the recording medium.
Discriminating step of discriminating the recording format of the report, and from the recording medium
The read image information is determined according to the result of the determination in the determination step.
Thinning to adaptively thin out and convert to a predetermined number of pixels
And the image information processed in the thinning step are stored.
A storage step of storing in a storage medium, and a storage step of storing in the storage medium
Supplying the image information to the image display means .

An image reproducing method according to one aspect of the present invention.
Is to encode and record at least the signal of the image sensor.
The first recording format to be recorded and the signal of the image sensor
And select the second recording format for encoding and recording
To reproduce image information recorded on a recording medium
An image reproducing method, comprising reading image information from the recording medium.
Read out step, and image information read out from the recording medium.
A discriminating step of discriminating the recording format of the report,
Image information read from the recording medium according to another result
Applying the predetermined color processing to the image data;
Image information read from the recording medium in the output step or
Is a predetermined image for the image information processed in the processing step.
A thinning process for thinning to a prime number,
To store the image information processed in the drawing process in a storage medium.
Storing the image information stored in the storage medium in an image table.
And a supplying step for supplying the indicating means .

[0020]

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic block diagram showing an embodiment of the present invention.

In FIG. 1, reference numeral 50 denotes a recording medium for recording raw image data and / or Y / C compressed data photographed by the camera shown in FIG. 2, and 52 denotes an interface for data and control signals with the recording medium 50. is there. Data read from the recording medium 50 is serially transferred to the interface 52.

The interface 52 has a serial / parallel conversion circuit therein, and converts serial data into parallel data as shown in FIG.
The data Ds and the parallel data Dp are output to the data selector 54. During this serial / parallel conversion,
Discard the lower 2 bits of 10-bit data,
Data.

The data selector 54 converts the parallel data Dp from the interface 52 into a data bus 56
, The serial data Ds is distributed to the decompression circuit 60 to the image memory 58, and a predetermined thinning is performed in the case of the raw image data. The expansion circuit 60 is a circuit that performs a decoding process corresponding to the compression encoding of the compression circuit 18.
Reference numeral 62 denotes a thinning circuit for thinning out a predetermined pixel value from the output of the decompression circuit 60. The output is connected to the image memory 58 via the data bus 56. Reference numeral 64 denotes a memory control circuit for controlling writing and reading of the image memory 56. In this embodiment, only luminance data is stored in the image memory 58 at a predetermined low resolution.

A D / A converter 66 converts the luminance data read from the image memory 56 into an analog signal.
Is a liquid crystal display (LCD) for displaying the output image signal of the D / A converter 66 in monochrome multi-gradation, 70 is a CPU for controlling the whole, and 72 is a D / A converter 66 under the control of the CPU 70.
And a synchronizing signal generating circuit 74 for supplying a predetermined synchronizing clock signal to the LCD 68, and a battery 74 for supplying power to each section.

It is assumed that the arrangement of the color filters of the high-resolution image pickup device of the camera for recording the photographed image on the recording medium 50 has the structure shown in FIG. That is, it has a checkered structure of magenta (Mg), green (G), yellow (Ye) and cyan (Cy). In the case of raw data recording, 1280 pixels in the horizontal direction are sequentially recorded on the recording medium 50 with 10-bit accuracy sequentially from line # 1. In the case of Y / C compression recording, YU after converting the image pickup signal to YUV system
It is assumed that the V signal is recorded on the recording medium 50 in a 4: 2: 2 interleave configuration.

The processing when the raw image data is read from the recording medium 50 will be described. In this case, the CPU 70 controls the data selector 54 to
Is selected, and only the G data is stored in the image memory 58. The display screen of the liquid crystal display device 68 is 640 pixels × 480.
If it is a line, the capacity of the image memory 58 is 640 × 48
It suffices if it is 0x8 bits or more. When one screen of G data is stored in the image memory 58, the memory control circuit 64 is controlled to convert the G data from the image memory 58 into the D / A converter 6.
6 is read. The D / A converter 66 converts the data from the image memory 58 into an analog signal according to the clock from the synchronizing signal generation circuit 72, and applies the analog signal to the liquid crystal display device 68. The liquid crystal display device 68 displays the image of the raw image data as 6
Monochrome display is performed with 40 × 480 pixels and 8-bit gradation.

Although an image is displayed with a G signal instead of a luminance signal,
This is enough for observing the outline of the captured image. Of course, a color liquid crystal display device is used as the display device 68,
If the image memory 58 can also store RGB data for one screen, it goes without saying that color display can be performed.

Processing when Y / C compressed data is read from the recording medium 50 will be described. In this case, the CPU 70
Is the serial data Ds from the interface 52
Is selected, and the data selector 54 is controlled so that only the Y data of the YYUV block sequence is passed. The expansion circuit 60 expands the input Y data,
Convert from zigzag scan to raster scan and output. That is, the expansion circuit 60 outputs a raster scan 8-bit luminance signal.

Since the luminance signal output from the expansion circuit 60 is 1280 pixels in the horizontal direction and 960 pixels in the vertical direction, the thinning circuit 62 outputs the luminance signal every other pixel in the horizontal direction.
Thinning out every other line in the vertical direction, 640 pixels x 48
Line 0 is assumed. The output of the thinning circuit 62 is applied to the image memory 58 via the data bus 56,
8 is stored.

After being stored in the image memory 58 in this manner, it is read out in the same manner as in the case of raw image data, converted into an analog signal by the D / A converter 66, and applied to the liquid crystal display device 68. Accordingly, the liquid crystal display device 68
The captured image Y / C compressed and recorded is displayed as a monochrome image of 256 gradations.

In the above embodiment, the display capacity of the liquid crystal display device 68 is 640 pixels in the horizontal direction, 480 lines in the vertical direction, 256 gradations (8 bits), the storage capacity of the image memory 58 and the bit truncation in the interface 52 are correspondingly made. The amount and the amount of thinning in the thinning circuit 62 were set. Lower resolution or high-resolution, or by using the color of the display device,
It goes without saying that these values are changed accordingly. Obviously, the reading from the recording medium 50 is not limited to the serial transfer.

In the above embodiment, the raw image data is recorded on the recording medium in an uncompressed manner. However, the same processing may be performed after the raw data is compressed by the reversible compression method and decompressed during reproduction.

For example, consider a high quality digital still video camera as shown in FIG. Reference numeral 110 denotes a high-resolution image sensor having about 1300 horizontal pixels and about 1000 vertical pixels, and includes a complementary color filter as shown in FIG. 4 on a photoelectric conversion surface. Image sensor 110
Is converted into a digital signal by an A / D converter 112 and stored in a buffer memory 114.

The output of the buffer memory 114 is applied to the a contact of the switch 126 and the switch 116. The switch 116 converts the output of the buffer memory 114 into a camera process circuit 118 (contact a) for performing camera signal processing such as gamma correction, white balance and luminance (Y) / color difference (C) conversion, or a reversible compression circuit 124. Is applied.

An output of the camera / process circuit 118 is supplied to a lossy compression circuit 122 (contact a) via a switch 120.
Alternatively, it is applied to the reversible compression circuit 124 (contact b). The lossy compression circuit 122 performs lossy compression such as JPEG baseline processing. Lossless compression circuit 124
Performs compression by DPCM encoding, for example.

The switch 126 is connected to the buffer memory 114
Output (a contact), the output of the irreversible compression circuit 122 (b contact) or the output of the reversible compression circuit 124 (c contact) are recorded on the recording medium 128. The recording medium 128 includes a hard disk device, a flash memory device, and the like.

In the camera shown in FIG.
120, 126, the raw image data (recording mode #
A), data obtained by losslessly compressing raw image data (recording mode #B), Y / C data losslessly compressed (recording mode #
The captured image can be recorded on the recording medium 128 in either C) or the irreversibly compressed Y / C data (recording mode #D).

That is, when the switch 126 is connected to the contact a, the raw image data output from the buffer memory 114 is recorded on the recording medium 128.

When the switch 116 is connected to the contact b and the switch 126 is connected to the contact c, the output of the buffer memory 114 is reversibly compressed by the reversible compression circuit 124 and recorded on the recording medium 128.

Switch 116 is a contact, switch 120
To the b contact and the switch 126 to the c contact,
The output of the buffer memory 114 is converted into a luminance / chrominance signal by the camera / process circuit 118, and the reversible compression circuit 1
The data is reversibly compressed by the recording medium 24 and recorded on the recording medium 128.

Switch 116 is a contact, switch 120
Is connected to the a contact and the switch 126 is connected to the b contact.
The output of the buffer memory 114 is converted into a luminance / color difference signal by the camera process circuit 118, irreversibly compressed by the irreversible compression circuit 122, and recorded on the recording medium 128.

It goes without saying that the recording medium 128 is recorded with identification information indicating the recording mode in which the photographed image was recorded, that is, ID.

FIG. 7 is a schematic block diagram showing an embodiment of the present invention applied to a reproducing apparatus for the camera shown in FIG. 130, the photographed image is recorded in the recording modes #A, #B,
A recording medium 132 recorded in #C or #D is an interface for connecting to the recording medium 130.
The interface 132 has a function of converting 10-bit data from the recording medium 130 to 8-bit data by discarding lower two bits.

Reference numeral 134 denotes a mode detection circuit for detecting the recording mode from the identification information of the data read from the recording medium 130 via the interface 132. Reference numeral 136 denotes a CPU for controlling each unit described later according to the detection result of the mode detection circuit 134. Reference numeral 138 denotes an operation panel for inputting a predetermined instruction to the CPU 136, for example, a number of an image to be captured or a start of image capturing, and performing a predetermined display.

Reference numeral 140 denotes a buffer memory for temporarily storing image data output from the interface 132. The storage capacity of the buffer memory is 100 for luminance and raw data.
The total size is about 1.6 MB for 0 × 1300 × (10/8) and about 1.3 MB for 1000 × 1300 × 8 for color difference.

Reference numeral 142 denotes a camera process circuit for converting raw image data into Y / C signals; 144, a lossy expansion circuit corresponding to the lossy compression circuit 122; and 146, a lossless expansion circuit corresponding to the lossless compression circuit 124. is there.

The switch 148 is connected to the buffer memory 14
0 (a contact) or the output of the reversible expansion circuit 146 (b
The switch 150 selectively applies the output of the buffer memory 140 to the nonreversible expansion circuit 144 (a contact) or the reversible expansion circuit 146 (b contact). The switch 152
The output of the irreversible expansion circuit 144 (a contact), the output of the camera process circuit 142 (b contact), or the output of the reversible expansion circuit 14
The output 6 (contact c) is selectively applied to the thinning circuit 154. The CPU 136 controls these switches 148, 150, 152 according to the detection result of the mode detection circuit 134.

The thinning circuit 154 is a circuit for lowering a high-quality image to a normal quality, for example, NTSC level. A D / A converter 156 for converting output data into an analog signal, a video encoder 160 for converting an output of the D / A converter 158 into an NTSC format, and a video display 162 for an output video signal of the video encoder 160 NTS
C monitor.

The recording medium 130 is an interface 132
Is connected to the CPU by a connection detection circuit (not shown).
136 is started, management information such as the number of recordings on the recording medium 130 and the recording mode of each image is read out, and the mode detection circuit 134 and the CPU 1
36. The mode detection circuit 134 detects the recording mode, and notifies the CPU 136 of the detection result.

The user designates an image to be captured by a number on the operation panel 138, and instructs the CPU 136 to start image capturing by a predetermined switch. The CPU 136 reads the recording data of the designated image from the recording medium 130 according to the instruction. The read recording data is sent to the buffer memory 140 via the interface 132.
Is written to.

Image information recorded in mode #A, that is,
When the raw image data is read from the recording medium 130, C
The PU 136 connects the switches 148 and 152 together to the b-contact. Therefore, the data in the buffer memory 140 is applied to the camera process circuit 142 and is converted into Y / C data. The Y / C output of the camera / process circuit 142 is applied to a thinning circuit 154 via a switch 152, thinned to the NTSC level, and stored in the image memory 156.

The image memory 156 reads out the stored Y / C data at the NTSC rate and applies it to the D / A converter 158. D / A converter 158 converts the Y / C data from the image memory 156 into an analog signal, the video encoder 160 is applied to the monitor 162 converts the output of the D / A converter 158 to the configuration port JIT signal . This allows
The image recorded as the raw image data is displayed on the monitor 162 as an image.

When the image information recorded in mode #B and the data obtained by reversibly compressing the raw image data are read from the recording medium 130, the CPU 136 sets the switch 148 to the a contact, the switch 150 to the b contact, and the switch 152 to the switch b. Connect to contact b. Therefore, the data in the buffer memory 140 is applied to the reversible decompression circuit 146 via the switch 150 and reversibly decompressed. That is, the data is restored to the raw image data. The output (raw image data) of the reversible expansion circuit 146 is
The signal is applied to the camera process circuit 142 via the switch 148, and is converted into Y / C data. Thereafter, the processing is performed in the same manner as in the mode #A, and the image is displayed on the monitor 162.

Image information recorded in mode #C, that is,
When the losslessly compressed Y / C data is read from the recording medium 130, the CPU 136 connects the switch 150 to the contact b and the switch 152 to the contact c. Therefore, the data in the buffer memory 140 is applied to the reversible decompression circuit 146 via the switch 150 and reversibly decompressed. That is, the reversible decompression circuit 146 outputs high-quality Y / C data that has undergone reversible compression and decompression.

The output of the reversible expansion circuit 146 is the switch 1
The signal is applied to the thinning circuit 154 via the NW 52, is thinned to the NTSC level, and is stored in the image memory 156. Thereafter, the processing is performed in the same manner as in the modes #A and #B.
2 is displayed.

Image information recorded in mode #D, that is,
When the irreversibly compressed Y / C data is read from the recording medium 130, the CPU 136 switches the switches 150 and 152.
Are both connected to the a contact. Therefore, the buffer memory 1
The data 40 is applied to the irreversible expansion circuit 144 via the switch 150 and is irreversibly expanded. That is, the irreversible decompression circuit 144 is a high-quality Y /
Output C data.

The output of the irreversible expansion circuit 144 is applied to a thinning circuit 154 via a switch 152,
The levels are thinned out and stored in the image memory 156. Thereafter, the processing is performed in the same manner as in the modes #A, #B, and #C, and the image is displayed on the monitor 162.

In the above embodiment, in the case of Y / C data, lossless or irreversible compression is always performed. However, the compression may be performed on the recording medium 130 without compression. In this case, as shown in FIG. Instead of the switch 152 having three selection contacts, a switch 164 having four selection contacts may be provided so that the output of the buffer memory 140 can be directly supplied to the thinning circuit 154.

In FIGS. 6 and 7, the same reversible compression method is applied to the raw image data and the Y / C data. However, when the reversible compression method suitable for each is used, a decompression circuit is separately provided. You may. FIG. 9 shows an example of the change. FIG.
The same circuit elements as those described above are denoted by the same reference numerals.

In FIG. 9, reference numeral 170 denotes a reversible decompression circuit for Y / C, 172 a reversible decompression circuit for raw image data, 17
Reference numeral 4 denotes an irreversible decompression circuit 1 for outputting the output of the buffer memory 140.
44 (a contact), a switch for selectively supplying the Y / C reversible decompression circuit 170 (b contact) and the raw data reversible decompression circuit 172 (c contact).
4 is a switch for supplying the output (contact a), the output of the Y / C reversible expansion circuit 170 (contact b), or the output of the camera process circuit 142 (contact c) to the thinning circuit 154.

[0063]

As can be easily understood from the above description, according to the present invention, images recorded in various recording formats
Displays information in normal quality, regardless of the recording format.
Can be easily checked.
You.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of an embodiment of the present invention.

FIG. 2 is a schematic configuration block diagram of a digital still camera.

FIG. 3 is a configuration block diagram of a conventional reproducing apparatus.

FIG. 4 is a circuit diagram of serial / parallel conversion in an interface 52.

FIG. 5 shows a complementary color filter arrangement of a high-resolution image sensor.

FIG. 6 is a block diagram showing another schematic configuration of the digital still camera.

FIG. 7 is a schematic block diagram of another embodiment of the present invention with respect to FIG. 6;

FIG. 8 is a configuration block diagram of a partially modified example of FIG. 7;

FIG. 9 is a configuration block diagram of a partially modified example of FIG. 7;

[Explanation of symbols]

10: Image sensor 12: A / D converter 14: Buffer memory 16: Camera process circuit 18: Compression circuit 20: Switch 22: Recording medium 24: Input interface 26: Buffer memory 28: Memory control circuit 30: CPU 32: switch 34: output interface 36: decompression circuit 38: RGB conversion circuit 40: image memory 42: D / A converter 44:
Driver circuit 46: output terminal 50: recording medium 5
2: Interface 54: Data selector 5
6: Data bus 58: Image memory 60: Decompression circuit 62: Thinning circuit 64: Memory control circuit 66: D
/ A converter 68: liquid crystal display device 70: CPU 7
2: Synchronous signal generation circuit 74: Battery 110: Image sensor 112: A / D converter 114: Buffer memory 116: Switch 118: Camera process circuit 120: Switch 122: Non-reversible compression circuit 12
4: Lossless compression circuit 126: Switch 128: Recording medium 130: Recording medium 132: Interface 134: Mode detection circuit
136: CPU 138: Operation panel 140: Buffer memory 142: Camera process circuit 144: Non-reversible decompression circuit 146: Reversible decompression circuit 14
8, 150, 152: switch 154: thinning circuit
156: Image memory 158: D / A converter 160:
Video encoder 162: NTSC monitor 16
4: Switch 170: Y / C reversible decompression circuit 17
2: Reversible decompression circuit for raw image data 174, 176: switch

Claims (12)

(57) [Claims] (1)At least the image sensor signal
The first recording format for encoding and recording, and the signal of the image sensor
A second recording type in which predetermined color processing is performed, encoded and recorded.
The image information recorded on the recording medium is selectively used by
An image reproducing device for reproducing, Reading means for reading image information from the recording medium; Determining the recording format of the image information read from the recording medium.
Determining means, Determining the image information read from the recording medium by the determination unit
Adaptively thins out according to the output of
Thinning means for converting; A record for storing image information processed by the thinning means.
Storage means, The image information stored in the storage means is supplied to the image display means.
Image reproducing apparatus comprising:
Place. 2. An image information recorded in the first recording format.
2. The information according to claim 1, wherein the information is losslessly compressed.
Image reproducing device. 3. An image information recorded in the second recording format.
3. The information according to claim 1, wherein the information is compressed.
The image reproducing apparatus according to any one of the preceding claims. 4. The recording medium according to an output of the discriminating means.
A decompression means for decompressing the image information read from the body;
4. The image reproduction device according to claim 2, wherein
Raw equipment. (5)At least the image sensor signal
The first recording format for encoding and recording, and the signal of the image sensor
A second recording type in which predetermined color processing is performed, encoded and recorded.
The image information recorded on the recording medium is selectively used by
An image reproducing device for reproducing, Reading means for reading image information from the recording medium; Determining the recording format of the image information read from the recording medium.
Determining means, Read from the recording medium according to the output of the discriminating means.
Processing means for performing the predetermined color processing on the selected image information
When, Read from the recording medium by the reading means
Image information or image information processed by the processing means
Thinning process so that the number of pixels becomes Thinning
Means, A record for storing image information processed by the thinning means.
Storage means, The image information stored in the storage means is supplied to the image display means.
Image reproducing apparatus comprising:
Place. 6. An image information recorded in the first recording format.
The information is lossless-compressed.
Image reproducing device. 7. An image information recorded in the second recording format.
6. The information according to claim 5, wherein the information is losslessly compressed.
7. The image reproducing device according to 6. 8. An image information recorded in the second recording format.
The information is irreversibly compressed.
7. The image reproducing apparatus according to 6. 9. The recording medium according to an output of the discriminating means.
A decompression means for decompressing the image information read from the body;
The method according to any one of claims 6 to 8, wherein
Image reproducing device. 10. Image information recorded on the recording medium
An identification signal for identifying the recording format of the
The discrimination means discriminates a recording format based on the identification signal.
The method according to any one of claims 5 to 9, wherein
Image playback device. 11. At least a signal of an image sensor is directly used.
First recording format for encoding and recording, and signal from image sensor
Recording that encodes and records the image by performing predetermined color processing
Image information recorded on a recording medium by selectively using the format
An image reproducing method for reproducing A reading step of reading image information from the recording medium; Determining the recording format of the image information read from the recording medium.
Discriminating step; Determining the image information read from the recording medium in the determining step
Adaptively thins out according to the result of
A thinning process for converting to a number, The image information processed in the thinning process is stored in a storage medium.
Memory process to The image information stored in the storage medium is provided to image display means.
And a supply step of supplying the image.
Law. 12. At least a signal of an image sensor is directly used.
First recording format for encoding and recording, and signal from image sensor
Is subjected to predetermined color processing and encoded and recorded. Record of
Image information recorded on a recording medium by selectively using the format
An image reproducing method for reproducing A reading step of reading image information from the recording medium; Determining the recording format of the image information read from the recording medium.
Discriminating step; Reading from the recording medium according to the determination result of the determination step
Processing for performing the predetermined color processing on the output image information
Process and The image read from the recording medium in the reading step
Information or image information processed in the above processing steps
A thinning process for thinning out to a predetermined number of pixels
When, The image information processed in the thinning process is stored in a storage medium.
Memory process to The image information stored in the storage medium is provided to image display means.
And a supply step of supplying the image.
Law.