JP2598133B2 - Photo printer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic printer that uses drawing intention information for printing exposure control.

[Conventional technology]

Cameras for inputting shooting conditions and light quality and recording the same on a recording medium such as a film, cameras for recording trimming information, and the like have been proposed.Photo prints can be made using this recorded information. Methods for obtaining the same are also known (for example, JP-A-59-214023 and JP-A-63-298233).

[Problems to be solved by the invention]

However, the above-described camera and the like have a problem that it is difficult to record a detailed drawing intention, and it is difficult to finish a photographic print according to a photographer's intention.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide a photographic printer capable of automatically obtaining a print photograph in which a photographer's drawing intention is reflected.

[Means for solving the problem]

In order to achieve the above object, the present invention relates to a photographic printer that creates a print using a photographic film having drawing intention information, wherein the drawing intention information is used when the feature of the scene is emphasized rather than the normal finish. A storage means for storing, in each of the drawing modes corresponding to the drawing intention information, correction data of a printing exposure amount for emphasizing a feature of a scene rather than a normal finish, and reading the drawing intention information Reading means, correction data determination means for obtaining, from the storage means, correction data of the printing exposure amount in the drawing mode corresponding to the drawing intention information, based on the drawing intention information read by the reading means, and correction based on the correction data. And printing means for printing with the printing exposure amount thus obtained.

[Action]

At the time of photographing, if a drawing intention is input, this drawing intention information is recorded on a recording medium, for example, a photographic film.
At the time of photo printing, the drawing intention information is read, and correction data of the printing exposure amount in the drawing mode corresponding to the drawing intention information is obtained based on the drawing intention information. And
Printing is performed with the printing exposure amount corrected based on the correction data. The drawing intention information is recorded corresponding to this scene when it is desired to emphasize the features of the scene rather than the normal finish. Further, the photographic printer previously stores correction data of the printing exposure amount for emphasizing the features of the scene rather than the normal finish for each drawing mode corresponding to each drawing intention information. Therefore, when the features of the scene are to be emphasized more than the normal finish, the features of the scene are emphasized, so that a finish that satisfies the drawing intention can be obtained. For example, when a landscape spring drawing intention is input, the result is a finish in which green, which is a feature of the spring landscape, is emphasized more than usual, and the photographing intention of the photographer is reflected on the print.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a camera for recording drawing intention information. The taking lens 10 includes an optical system 10A and a lens barrel 10B that holds the optical system 10A. The taking lens 10 moves back and forth along the optical axis 11 by a manual or autofocus mechanism to adjust the focus. Behind the taking lens 10, a shutter mechanism 12 for performing program control is arranged. The shutter mechanism 12 includes, for example, two shutter blades 13 and 14, and each of the shutter blades 13 and 14 has a notch 13A and 14A, respectively. These shutter blades 13, 14
When the movable pin 16 moves toward the fixed pin 17 by the control mechanism 15, the notch 13A, 14A is overlapped by moving in a direction away from the fixed pin 17 as a center. This notch 13A, 14A
The overlapped portion is opened, and the light passing therethrough enters the photographic film 18, where the subject is photographed.

The touch panel sensor 20 is arranged outside the camera body (not shown), for example, on the back plate side, and is used when inputting a drawing intention as a character image before or after photographing. As is well known, the touch panel sensor 20 has elements arranged in a matrix, and when a finger or a pen tip contacts each element, the touched element is turned on.
State. The output signal from each of these elements is
Is input to The driver 21 drives the liquid crystal display panel 22 to display a character image input by the touch panel sensor 20 on the liquid crystal display panel 22. The lamp 23 emits light for a certain period of time in association with the operation of the shutter mechanism 12, and forms a character image on the liquid crystal display panel 22 on the photographic film 18 via the lens 24 for recording. The touch panel sensor 20 is configured to be transparent,
By providing a display panel for monitor display so as to overlap with the touch panel sensor, characters written on the panel surface can be checked on the spot, which is convenient. Further, instead of the liquid crystal display panel 22, a plasma display can be used.

FIG. 2 shows an example of a photographic film in which drawing intention information is recorded. The photographic film 18 has perforations 18B perforated at regular intervals, and the frame is detected by a sensor of the wrapping device to perform one frame advance. Perforation
On the opposite side of 18B, a character image 19 indicating the drawing intention of frame 18A is imprinted, and is converted into a visible image by photographic development. The recording portion of the character image 19 is a peripheral portion of the frame 18A and recorded at a lower position as in the present embodiment,
If the film cannot be recorded above or below the frame because there is no margin in the width of the film, the margin between the frames can be made wider than that of the conventional film and recorded in this margin. Character images representing the drawing intention include, for example, "landscape spring", "landscape autumn", "landscape snow", "person summer", "morning sun", "sunset", "midday", "moon (sky)", "moon (sky)". person"
Etc. can be used. In addition, for example, “spring”, “summer”, “autumn”, “snow”, “person”,
"Month" or the like can also be used. Further, although not the drawing intention information, a desired magnification at the time of trimming may be recorded using coded alphanumeric characters such as "T1,""T2," and "T3."

FIG. 3 shows a photographic printer. The white light emitted from the light source 35 passes through a cyan filter 36, a magenta filter 37, and a yellow filter 38, and then enters a mixing box 39. For these color correction filters 36 to 38, the amount of insertion into the optical path 41 is adjusted by the filter adjustment unit 40,
Thereby, the three-color light component of the printing light and the intensity thereof are adjusted. In the mixing box 39, diffusion plates are attached to both ends of a rectangular tube whose inner surface is a mirror surface.

The film carrier 43 is arranged at the print position, on which the developed photographic film 18 is set.
The photographic film 18 is illuminated with the light transmitted through the mixing box 39. In order to ensure the flatness of the photo film 18, a film mask 44 is provided above the print position. As is well known, the film mask 44 has an opening corresponding to the size of the frame. The film mask 44 is lifted by a solenoid (not shown) when the photographic film 18 is transported, and is pressed against the photographic film 18 during printing. ing.

A character reading head 46 is arranged in front of the printing position, and reads the character image 19 recorded on each frame when the photographic film 18 is sent to the printing position. The read signal is sent to a decoder 47 where the character is read based on a signal from a character read head 46 and the code signal is sent to a mode selector 48. The relationship between the code signal (photographing intention information) and the drawing mode is determined in advance, and this is stored in the mode selector 48. Mode selector
48 determines the corresponding drawing mode based on the code signal, searches the memory 49 based on the drawing mode, and calculates the exposure amount correction coefficient of the corresponding drawing mode to the arithmetic unit 50, and controls the printing magnification in the trimming mode. Send the quantity to the controller 51. The memory 49 stores in advance a correction coefficient for an exposure amount and a control amount for controlling zooming of a printing lens for each of various image forming modes.

A scanner 55 including a lens 53 and an image area sensor 54 is disposed diagonally above the print position, and measures the transmitted light of each point of the frame set at the print position. The signal from this scanner 55 is
The signal is sent to the signal processing circuit 57, where the signal is subjected to logarithmic conversion and digital conversion, and then the density signal at each point is sent to the arithmetic unit 50. The controller 51 adjusts the set positions of the color correction filters 36 to 38 according to the three color printing exposure amounts calculated by the arithmetic unit 50. Further, the controller 51 includes a filter adjusting unit 40.
In addition, it controls each unit such as the shutter driving unit 58.

A printing lens 60 is disposed above the print position, and enlarges and projects an image of the set frame on color paper 62 disposed behind a paper mask 61. As the printing lens 60, a zoom lens is used, and the focal length is adjusted by the lens driving unit 63 so that a predetermined printing magnification is obtained at the time of trimming. A shutter 65 whose opening and closing is controlled by a shutter driving unit 58 is disposed between the printing lens 60 and the color paper 62.

Next, the operation of the above embodiment will be described. At the time of photographing, if it is desired to specifically record a drawing intention, the touch panel sensor 20 inputs the character image indicating the drawing intention. This input is performed by writing a character image on the surface of the touch panel sensor 20. The input character image indicating the drawing intention is displayed on the liquid crystal display panel 22 by the driver 21.
Next, when the camera is aimed at the subject and the composition is determined, when the release button is pressed down, the control mechanism 15 reciprocates the drive pin 16 and opens and closes the shutter mechanism 12 to perform photographing. In conjunction with the shutter mechanism 12, the lamp 23 emits light, and the character image displayed on the liquid crystal display panel 22 is recorded via the lens 24 at the periphery of the corresponding frame. The recording of the drawing intention may be performed after shooting. In this case, a drawing intention recording mode is prepared, and this mode is designated before photographing. When this mode is specified, the film is not frame-advanced after photographing. Then, when the drawing intention is input and recorded, the film is fed frame by frame.

When the photographing of one photo film 18 is completed, the photo film 18 is taken out of the camera and submitted to a photo processing laboratory. In the photo processing laboratory, the photo film 18 is processed to convert each frame recorded as a latent image and a character image indicating a drawing intention into a visible image.

The developed photographic film 18 is loaded into a film carrier 43 of a photographic printer shown in FIG. The film carrier 43 sets a frame to be printed, for example, 18A at a printing position. When the frame 18A is transported toward the printing position, the character image 19 indicating the drawing intention is read by the character reading head 46, and this signal is sent to the decoder 47.
Is converted into a code signal in the drawing mode. The mode selector 48 searches the memory 49 based on the code signal and sends the correction coefficient of the exposure amount corresponding to the code signal and the control amount of the printing magnification at the time of trimming to the arithmetic unit 50 or the controller 51.

When the frame 18A is set at the print position, the scanner 55 measures the transmitted light of red, green, and blue for each point of the frame 18A. The photometric values of these three colors are converted into densities by the signal processing circuit 57 and then sent to the arithmetic unit 50. The calculation unit 50 calculates a printing exposure amount E _i (i represents one of red, green, and blue) by the following equation.

E _i = α _i · K _i · (D _i −DN _i ) + β _i where the symbols are as follows.

α: Slope coefficient K: Correction coefficient β: Constant determined by combination of photographic film, color paper, printing lens, etc. D: Average density of frame DN: Average density of control negative _Ki is set in advance for each drawing mode and is stored in the memory 49. Specifically, in the “landscape spring mode”, the correction coefficient is such that green is emphasized more than usual. In the “scenery autumn mode”, red is more emphasized than usual, and in “scenery snow mode”, white is more emphasized than usual. In the “summer summer finish mode”, a mode is used in which the skin color of the person is enhanced to be a tan color more than the normal color. In the “portrait mode”, a mode that emphasizes skin color is used. In addition to the above-described drawing modes, various drawing modes may be prepared. In this case, a correction coefficient specific to the drawing mode is set in advance by an experiment or the like. For example, if you cast a person as a shadow,
These modes are set when a person is slightly darkened, when the sun is finished as a sunrise or sunset, when the sky is a moon, and when autumn leaves are desired to be emphasized.

Although not a drawing intended information, in the case of "trimming mode" recorded frame 18A as drawing mode, the correction coefficient K _i corresponding baked magnification adjustment amount and to the printing lens 60 from the memory 49 is determined , the amount of exposure E _i is calculated accordingly.

Controller 51, the filter setting position signal generated according to the amount of exposure E _i, and sends it to the filter adjustment unit 40. The filter adjusting section 40 adjusts the insertion amount of the color correction filters 36 to 38 into the optical path 41. Further, the lens driving unit 63 is controlled according to the printing magnification adjustment amount, and the printing lens 60 is changed to a desired printing magnification. After adjusting the filter and changing the printing magnification, the shutter 65 opens for a certain period of time,
18A is printed on color paper 62 by exposure. Hereinafter, similarly, each frame 18A of the photographic filter 18 is sequentially printed and exposed.

In the above embodiment, the kanji is input to indicate the drawing intention, but katakana or hiragana may be used to simplify the configuration of the character reading head 46 and the decoder 47. Further, the drawing mode may be symbolized by alphanumeric characters or the like, and the alphanumeric characters may be used. The drawing intention information recorded on the photographic film 18 may use a barcode or the like in addition to the character image 19.

Further, in the above embodiment, the touch panel sensor 20 is used to input the drawing intention information, but instead of this, a character image is input by using a matrix in which the number of push button switches corresponding to the elements are arranged. You can also. Further, instead of inputting a character image, a plurality of switches may be provided, and a combination of the switches may be used to encode and input a drawing intention.

Instead of recording the drawing intention information on the photographic film 18, the drawing intention information may be recorded on a magnetic recording unit or the like formed on the outer periphery of the IC card or the patrone, or may be a recording medium connected to the photographic film. .

In addition, the present invention can be used for photographic printing of an image recorded by an electronic still camera. In this electronic still camera, drawing intention information is written to a magnetic floppy together with image data. And for example CR
When displaying an image on T and recording the image on color paper by a digital color printer, the image forming intention information is read out and used for controlling the exposure amount of each point based on the image data.

〔The invention's effect〕

As described above, according to the present invention, information of drawing intention is recorded on a photographic film or the like at the time of photographing, and is used for calculating the exposure amount at the time of photographic printing. Can be created efficiently. In addition, since the intention of drawing is automatically read and the exposure amount and the like are controlled based on this, the photometric value of each point on the screen is calculated and processed, and the photographing intention of the photographer is compared with that which performs scene discrimination. Can be accurately reflected on a photographic print. Especially, when the feature of the scene is to be emphasized more than the normal finish, the drawing intention information is recorded corresponding to the scene, and for each drawing mode corresponding to the drawing intention information, the feature of the scene is emphasized more than the normal finish. Is stored in advance, the drawing intention information is read, and based on the drawing intention information, the correction data of the printing exposure amount in the drawing mode corresponding thereto is obtained from the storage means. Since the print was performed with the printing exposure corrected based on the data, when the features of the scene were to be emphasized rather than the normal finish, the features of the scene were emphasized, so that the finish that could satisfy the drawing intention was automatically obtained. become.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an example of a photographic camera for recording a drawing intention. FIG. 2 is a plan view of a photographic film showing a recording example of a character image indicating a drawing intention. FIG. 3 is a schematic view showing an example of the photographic printer of the present invention. 10 Photographic lens 18 Photo film 18A Frame 19 Character image (drawing intention information) 20 Touch panel sensor 22 Liquid crystal display panel 46 Character reading head.

Claims (1)

(57) [Claims] 1. A photographic printer for producing a print using a photographic film having drawing intention information, wherein the drawing intention information is recorded in correspondence with the scene when it is desired to emphasize the features of the scene rather than a normal finish. Storage means for storing, for each of the drawing modes corresponding to the drawing intention information, correction data of the printing exposure amount for emphasizing the characteristics of the scene rather than the normal finish; reading means for reading the drawing intention information; Correction data determining means for obtaining, from the storage means, correction data of the printing exposure amount in the drawing mode corresponding to the drawing intention information, based on the drawing intention information read in step, and printing with the printing exposure amount corrected based on the correction data. A photographic printer, comprising: