JPH0264532A - Photographing information recordable camera, and information outputting device for visualizing object information - Google Patents

Abstract

PURPOSE:To correct a red-eye phenomenon during visualization when it occurs in object information and to remove red eyes by equipping the title camera with a photographing conditions detecting means, a conditions judging means and a recording means. CONSTITUTION:In a camera main body 10, photographing conditions generating red eyes are recognized by a red-eye judging part 13, based on information from a brightness information detecting part 11 that the brightness of an object is lower than a prescribed value, and also information from a stroboscope use detecting part that a flash device is used. Then, red-eye information is imprinted in the photographing information recording area (margin area) M2 of a film FI by an information recording part 14. At a printer 20, the red-eye information is read out from the area M2 by a reading part 21, and after printing, the photograph of a frame wherein the red-eye information is recorded is fed out into a tray different from one for regular photographs, so that pupils in the photograph are corrected by writing in an after process. Ejecting routes for printed photographs are switched in a selecting part 23.

Description

[Detailed Description of the Invention] A. Industrial Field of Application The present invention provides a camera capable of recording photographic information and a camera capable of recording photographic information that enables detection of red-eye frames when visualizing photographed subject information, and a camera for visualizing photographed subject information. The present invention relates to an information output device.

B. Prior Art Red-eye phenomenon refers to the phenomenon in which the human eye shines red or gold when taking color photographs using an electronic flash device. The flash of light from the light emitting part is reflected by the retina, and the reflected light is captured on film. There are many capillaries in the retina of the eye, and the hemoglobin in the blood is red, so the reflected light appears reddish.

It has been empirically determined that the red-eye phenomenon appears conspicuously in photographs under the following conditions.

1) When the photographing environment is dark The size of the pupil of the human eye changes depending on the surrounding brightness, and when it is dark, the diameter expands to about 7 to 8 mm. At this time, since the amount of light incident on the eye and the amount of reflected light increase, the red-eye phenomenon is naturally more noticeable.

2) When the distance between the light emitting part of the electronic flash device and the optical axis of the photographing lens is short, the retina of the eye has a fairly high reflectance and at the same time has high reflection directionality. Therefore, if the light emitting part of the electronic flash device and the optical axis of the photographing lens are close to each other, and there are three elements (light emitting part, photographing lens, and eye) in a positional relationship where the light regularly reflected by the retina easily enters the photographing lens, red-eye occurs strongly. In other words, red eye always occurs when the angle at which the photographic lens and the light emitting part of the flash light source are viewed by the eyes of the person who is the subject is less than a certain small angle. Empirically, this angle is approximately 2-2.5 degrees. Therefore, red-eye can be prevented by moving the light emitting part of the electronic flash device away from the optical axis of the photographing lens, but there is a limit depending on the distance from the camera to the subject (hereinafter referred to as subject distance), and the subject distance is a predetermined value. In this case, it is difficult to avoid red eyes.

Therefore, techniques for preventing the red-eye phenomenon are conventionally known. For example, in the July 1952 issue of rpsa JOURNALJ, it was written that before shooting, the eyes should be allowed to adjust to the bright environment.
A method for preventing red eye by firing a flash while the pupil is reduced to 3 mm or less is disclosed. Furthermore, in Japanese Patent Publication No. 58-48088, pre-irradiation is performed using a pre-irradiation lamp for the time required for the pupil to close before photographing, and when the pupil has reached almost its minimum diameter, an electronic flash device is activated. A technique for photographing by causing a light emitting section to emit light has been disclosed. Furthermore, in Japanese Patent Publication No. 58-9130, 2
A method has been disclosed in which multiple flash discharge tubes are provided, and after one discharge tube emits a pre-emission to close the pupil, the second discharge tube emits main light to perform actual photographing. .

Problems to be Solved by the C0 Invention However, with the above pre-emission, it is nearly impossible to completely suppress the occurrence of red eyes under all conditions.

A technical problem of the present invention is to obtain a camera or a subject information output device such as a printer that can classify only frames with red eyes when visualizing subject information. Sometimes the purpose is to correct the red eye phenomenon and remove the red eye.

Means for Solving the Problem No. 08 Explained with reference to FIG. 1 showing an embodiment of the problem, the invention of claim 1 records subject information regarding the subject in each frame on the subject information storage medium M1, and records information regarding photographing conditions, etc. This is applied to a camera that records photographic information on a photographic information storage medium M2.

The above-mentioned technical problem is solved by a photographing condition detection means 11.1 that detects various photographing conditions including at least subject brightness and necessary for determining whether or not red-eye occurs under a photographing condition.
2, a determining means 13 for determining whether or not the photographing conditions detected by the photographing condition detecting means 11 and 12 are photographing conditions in which red eye occurs; This problem is solved by a camera equipped with a recording means 14 for recording red-eye information indicating this fact on the photographic information storage medium M2 in association with the storage area of one frame on the subject information storage medium Ml.

Further, the invention of claim 2 is applied to an information output device that visualizes object information of each frame on the object information storage medium Ml.

The above-mentioned technical problem is the detection means 22 for detecting red-eye information on the photographic information storage medium Ml, and the detection means 22.
The problem is solved by an information output device having an output means 23 which outputs a signal for selecting the piece when red eye information is detected.

Furthermore, the above-mentioned technical problem includes a photographing condition detecting means 11 and 12 for detecting various photographing conditions including at least subject brightness and necessary for determining whether or not a photographing condition occurs due to red eye power; The problem can also be solved by a camera according to claim 3, further comprising a recording means 14 for recording the photographing conditions detected at .degree.

Furthermore, a detection means 21 for detecting the photographing conditions on the photographing information storage medium Ml, and a determining means 24 for determining whether or not the photographing conditions cause red eye based on the photographing conditions detected by the detecting means 21. This problem can also be solved by an information output device having an output means 23 that outputs a signal for selecting the frame when the determination means 24 determines that the photographing conditions are such that a red eye occurs.

80 Effects According to the present invention, for example, information that can be used to determine whether or not red-eye occurs under shooting conditions is recorded in the margin of the film, and based on that information, it is possible to determine which frames need red-eye removal and which frames do not require red-eye removal. The pieces can be easily classified, and red eyes can be removed by making additional corrections on negatives or printed photographs.

In the above-mentioned sections and Section E, which provide detailed explanations of the present invention, figures of examples are used to make the present invention easier to understand, but the present invention is not limited to the examples.

F. Example 1.First embodiment- A first embodiment will be explained with reference to FIGS. 1 to 3.

In this first embodiment, the camera side determines that the subject is of low brightness and the photographing conditions are such that red-eye occurs when photographing with an electronic flash device, and red-eye information indicating this fact is stored in the margin of the film. On the printer side, frames for which red-eye information has been detected are corrected after printing, so they are separated from normal photographs and ejected from the printer.

In FIG. 1, the camera body 10 includes a brightness information detection section 11 that detects the brightness of a subject, a strobe use detection section 12 that detects whether or not an electronic flash device is used, and a brightness information detection section 11 that receives input from the brightness information detection section 11. a red-eye determination unit 13 that determines that the photographing conditions are such that red-eye occurs when the brightness of the subject is below a predetermined value and information indicating that an electronic flash device will be used is input from the strobe use detection unit 12; , and an information recording section 14 that records red-eye information in a photographing information storage area M2 provided in the margin of the film FI when the red-eye determining section 13 determines that the photographing conditions are such that red-eye occurs. The recording section 14 is composed of, for example, one light emitting diode, and when it is determined that the photographing conditions cause red eye, the light emitting diode is turned on and the area M2 of the film FI is recorded.
can be exposed to light, thereby recording red-eye information. Note that M1 is a subject information storage area in which subject information is recorded, and this area M1 corresponds to each frame of the film.

The printer 20 stores photographic information storage area M2 in the film margin.
The present invention includes an information reading section 21 for reading information recorded in the information, a red-eye detection section 22 for detecting the presence or absence of red-eye information from the read information, and a sorting section 23 for selecting pieces in which red-eye information has been detected.

For example, the reading section 21 is composed of a photointerrupter, and reads red-eye information by positioning the photographic information storage area M2 of the film margin between the light receiving element and the light emitting element of the photointerrupter. As described above, if it is determined that the photographing conditions are such that red-eye occurs, the area M2 is exposed, so the light from the two light emitting elements is blocked by the area M2. On the other hand, if the photographing conditions are not such that red-eye occurs, the region M2 is not exposed, so that the light from the light emitting element reaches the light receiving element. Therefore, the reading section 21 can read the information of the region 2 from the state of the output of the light receiving element. Further, the red-eye determination unit 12 is configured to determine whether the light-receiving element is not irradiated with light or is irradiated with light, for example, by comparing the signal from the light-receiving element with a signal at a reference level. Furthermore, sorting section 2
In step 3, for example, the red-eye detection unit 22 sends out the frame photographs on which red-eye information is recorded, after printing them, to a tray separate from normal photographs (photos obtained from negative film on which red-eye information is not recorded). During the work, selection will be made to add and correct the eyes on the photo. That is, the sorting unit 23 outputs a signal to an actuator (not shown) for sorting the frames in which red-eye information has been detected from normal photographs, and switches the ejection route of the printed photographs.

The processing procedure of this embodiment will be explained with reference to FIGS. 2 and 3. FIG. 2 is a flowchart on the camera side, and FIG. 3 is a flowchart on the printer side.

When the program shown in FIG. 2 is executed, first step S1
, the brightness information from the brightness information detection section 11 and the strobe usage information from the strobe usage detection section 12 are read. Next, in step S2, it is determined whether or not the photographing conditions are such that red-eye occurs, based on the read luminance information and flash usage information. For example, it is determined that red eye will occur when the brightness is below a predetermined value and a strobe is used. This determination result is temporarily stored in a certain storage area, and after photographing is performed in step S3, it is stored in the photographing information storage area M2 of the film FI in step S4. for example,
When it is determined that the photographing conditions are such that red-eye occurs, the light emitting diode of the recording section 14 is turned on and the area M of the film FI is
2 to form red-eye information, and if it is determined that the photographing conditions are not such that red-eye occurs, the recording section 14 is prevented from recording. In other words, no red-eye information is formed.

Next, when the film is developed and set in the printer, the program shown in FIG. 3 starts running. First, step Sll
At this point, the reading unit 21 reads red eye information. Specifically, for example, the light emitting element of the photointerrupter facing the photographic information storage area M2 in the film margin is turned on, and the output of the light receiving element is detected. Next, the process proceeds to step 812, where it is determined whether there is red-eye information. For example, when the light of the light emitting element is blocked by the red-eye information in the area M2, the light-receiving element does not receive the light and its output is at a low level, so that the detection unit 22 detects the red-eye information. If there is red-eye information, the process proceeds to step S13 to set a red-eye flag, and then, in step S14, a negative image in the subject information storage area M1 is printed onto photographic paper. If it is determined in step S12 that there is no red-eye information, step S13 is skipped and printing is performed in step S14. After that, the process proceeds to step S15, and it is determined whether or not there is a red eye flag. If affirmative, the process advances to step 816, and the printed photo is sent to a tray for correction. If there is no red eye flag, step S
Proceed to step 17 and send the printed photo to the normal photo tray.

After all the frames have been printed as described above, the red eyes on the photo sent to the red-eye photo tray are directly added to and corrected using a method called retouching.

1. Second Embodiment A second embodiment will be described based on FIGS. 4 to 6. The same parts as in FIGS. 1 to 3 are given the same reference numerals, and only the differences will be explained.

In FIG. 4, the camera body 10 includes a luminance information detection section 1
1, a strobe use detection section 12, and a recording section 14. Unlike the first embodiment, the camera body 10 does not determine whether or not the shooting conditions are such that red-eye occurs; Luminance information and flash usage information are recorded in the blank photographing information storage area M2. As for the luminance information, since the amount of information is large, such as EV-3 to EV20, it is necessary to record it in a form such as a digital code. On the other hand, the strobe use information can be formed by exposing or not exposing the strobe use information area in the region M2 depending on whether the strobe is used or not, similarly to the above-mentioned red-eye information.

The printer 20 also includes a red-eye determination section 24 instead of the red-eye information detection section 22. The determining unit 24 determines whether or not the photographing conditions are such that red eye occurs, based on the luminance information and strobe usage information recorded in the photographing information storage area M2 in the film margin. This is performed in exactly the same manner as the red-eye determination section 13 provided on the camera body 10 side in the first embodiment.

The operation of this second embodiment will be briefly explained with reference to FIGS. 5 and 6. Brightness information and strobe use information are recorded in processing step S24 on the camera body side, those shooting information are read in processing step 331 on the printer side, and in step S32, it is determined whether the shooting conditions are such that red-eye occurs or not. Determine. As in the first embodiment, the photograph taken under the photographing conditions in which red eyes occur and the photograph under normal conditions are sent to separate trays after being printed, and the photographs are directly added to and corrected in post-processing.

As shown in FIG. 7, when it is determined in step S32 that the photographing conditions under which red eyes occur, the pupils on the negative film are corrected using a laser beam or the like in step S41, and the corrected negative is printed to remove the red eyes. You may try to get a picture without it. Alternatively, you can store only the position of the frame without correcting it on the printer or printing it, and then make additional corrections on the negative after the other frames have been printed, and then You can print it out. Alternatively, after developing the film and before setting it in the printer, visually determine the presence or absence of red-eye information, and based on the results,
Corrections may be made on negative film.

Note that the distance to the subject may be considered as the photographing information for red-eye determination. Furthermore, if the distance from the arc tube of the electronic flash device to the camera optical axis changes, sway may be taken into consideration.

In addition, although the shooting information storage area M2 is provided in the margin of the film, it is also possible to provide this shooting information storage area in the film panel or to provide this type of storage area in the memory card and make it correspond to each frame in the subject information storage area. Various information regarding red eye determination may be stored.

Furthermore, although the above description has been made of a normal still camera that uses silver halide film and its printer, the invention is not limited to this, and for example, an electronic still camera that stores subject information obtained by shooting on a floppy disk,
The present invention can also be applied to a printer that outputs the stored subject information as a hard copy and a display device that visualizes it on a screen such as a CRT. In this case, the output information may be recorded on a floppy disk as a subject information storage medium, and the display may detect this output information to obtain a predetermined screen.

Note that in order to correct and remove red-eye on a magnetic storage medium, it is sufficient to change the gradation of the red-eye portion.

Effects of the G8 Invention According to the present invention, it is possible to detect frames photographed under conditions where red-eye occurs, so even if red-eye occurs in the subject information, it can be corrected when visualizing it. Images and videos without red-eye phenomenon can be obtained.

[Brief explanation of the drawing]

Figures 1 to 3 illustrate the first embodiment.
The figure is a block diagram showing the overall configuration, and FIGS. 2 and 3 are flowcharts showing processing procedures on the camera side and the printer side. Figures 4 to 6 explain the second embodiment, and the fourth
The figure is a block diagram showing the overall configuration, and FIGS. 5 and 6 are flowcharts showing processing procedures on the camera side and the printer side. FIG. 7 is a flowchart showing a modification. ↓O I Camera body brightness information detection unit Strobe usage detection unit Red-eye detection unit 1 Printer 2 Red-eye information detection unit 2 Red-eye detection unit F Subject information storage area Shooting information storage area: Recording unit: Reading unit: Sorting unit: Film

Claims (1)

[Scope of Claims] 1) A camera that records subject information regarding a subject in each frame on a subject information storage medium and also records shooting information regarding shooting conditions and the like on the shooting information storage medium, including at least subject brightness; A photographing condition detecting means for detecting various photographing conditions necessary to determine whether or not a photographing condition causes red eye; and a determining means for determining whether or not a photographing condition causes red eye based on the detected photographing condition. When the determining means determines that the photographing conditions are such that red-eye occurs, red-eye information indicating this is stored on the photographing information storage medium in correspondence with a storage area of one frame on the subject information storage medium. 1. A camera capable of recording photographic information, comprising a recording means for recording. 2) In the information output device that visualizes the subject information of each frame on the subject information storage medium, a detection means for detecting red-eye information on the photographic information storage medium; and when red-eye information is detected by the detection means, the frame 1. An information output device for visualizing subject information, comprising: output means for outputting a signal for selecting a subject. 3) In a camera that records subject information related to the subject in each frame on the subject information storage medium and also records shooting information related to the shooting conditions etc. on the shooting information storage medium, shooting conditions that include at least subject brightness and that cause red eye to occur. a photographing condition detecting means for detecting various photographing conditions necessary for determining whether or not the photographing condition is detected; and a photographing condition detecting means for detecting various photographing conditions necessary for determining whether 1. A camera capable of recording photographic information, comprising: a recording means for recording photographic information on a photographic information storage medium. 4) In the information output device that visualizes the subject information of each frame on the subject information storage medium, a detecting means for detecting the photographing conditions on the photographing information storage medium; and an output means for outputting a signal for selecting the piece when the determining means determines that the photographing condition is such that a red eye occurs. An information output device that visualizes subject information, characterized by: