JPH103128A - Method and device for digital printing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust and restore the set value of the magnification of an image forming lens by setting standard optical magnification to an adjusted optical magnification adjusted according to the combination of a carrier ID code and the print size of a reproduced image. SOLUTION: By a CPU 76, the carrier ID code is read, and the corresponding standard optical magnification is read out from a memory 78 as read optical magnification and selected. By a user, the combination of the aimed carrier ID code and the print size is selected and a magnification adjustment value is numerically inputted by using a data input device 22. Next, actual optical magnification is arithmetically operated based on the read optical magnification and the magnification adjustment value and converted to a scanner control value expressed by the number of pulses imparted to a magnification adjustment motor for moving a zoom lens group from an origin based on the real optical magnification by referring to a magnification-pulse table in the memory 78 by the CPU 76 in order to adjust the optical magnification of a zoom lens unit 62. Then, the optical magnification of the unit 62 is set to the real optical magnification.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for projecting an image of a film original onto an image sensor with a zoom lens, photoelectrically reading the image, performing digital signal processing, laser-exposing the photosensitive material, and obtaining a print of a desired image size. Digital printing method and apparatus.

[0002]

2. Description of the Related Art At present, an image photographed on a photographic film original such as a negative film or a reversal film (hereinafter referred to as a film original or simply a film) is printed on a photosensitive material such as photographic paper by exposing the image of the film original to light. It is performed by so-called direct exposure, in which the photosensitive material is exposed on the surface by projecting onto the material.

On the other hand, in recent years, a printing system using digital exposure, that is, image information recorded on a film is photoelectrically read, the read image is converted into a digital signal, and then various image processes are performed. A digital print system has been proposed in which image information for recording is recorded, a photosensitive material is scanned and exposed with recording light modulated according to the image information, an image (latent image) is recorded, developed, and printed. Is being developed.

In a digital print system, an editing layout of a printed image such as editing such as synthesis of a plurality of images, division of an image, editing of a character and an image, and various types of images such as color / density adjustment, scaling, and edge enhancement. Processing can be performed freely, and a finished print freely edited and image-processed can be output according to the application. Further, in a conventional printing system using direct exposure, it is not possible to reproduce all image density information recorded on a film or the like in terms of density resolution, spatial resolution, color / density reproducibility, etc.
According to the digital photo printer, a print in which almost 100% of the image density information recorded on the film is reproduced can be output. Further, according to the digital print system, it is possible to store (save) the image information of the image recorded on each film and the image processing conditions for the image information in an external memory such as a memory or a floppy disk of the apparatus. Therefore, when performing additional printing or the like, a film serving as an original image is not required, and since there is no need to set processing conditions again, operations such as additional printing can be performed quickly and efficiently.

Such digital print systems and digital photo printers basically include an image input device for photoelectrically reading an image recorded on an original such as a film by an image sensor or the like, a display device for displaying the read image, The image processing apparatus includes an image processing apparatus that performs image processing on a read image to determine exposure conditions for image recording, and an image recording apparatus that obtains a print for performing development processing by scanning and exposing a photosensitive material according to the determined exposure conditions. The present applicant discloses an apparatus and a method for realizing such a digital print system as disclosed in JP-A-6-217091 and JP-A-6-217091.
Nos. 233052 and 6-245062, and the gazette discloses an outline of a digital photo printer device.

[0006]

In a conventional analog printer, a film original image illuminated by a light source such as a lamp is directly projected onto a photosensitive material by an imaging lens to perform exposure printing. For users who use printers, such as in laboratories and labs, it is necessary to mask the image surface of the film original so that there is no black edge, and if the finished print has no edge, project it so that the mask image is not In addition, in consideration of variations in continuous processing, adjustment errors, machine differences, aging, etc.,
In anticipation of the safety factor, the print image is set to be an image of a screen that is one size smaller than the entire image surface of the document. For this reason, the image reproduced on the print has the peripheral portion of the image surface of the film original cut off. In this way, printer users can suppress the majority of customer complaints, and for a small number of customers who want to reproduce a small number of prints up to the periphery of the original image, trim the individual original images. And so on.

However, depending on the type of film original, for example, in the case of a reversal film (RV) or the like, a small size, for example, an L size (127 × 8)
9mm), not only amateurs,
In many cases, photographers or people engaged in advertisements and printing, etc. handle the prints, the eyes of the prints are different, and the demands on the reproduction rate of the screen of the original image are severe. For such professionals, the L size RV print described above is close to trial printing. For example, since a trial printing is performed to determine a trimming area for large stretching, the reversal film must be as small as possible for all original images, or that there will be no image rejection, Some customers request that the entire screen of the original image be reproduced even when it comes out, so that the image is not shaken at all.

However, in a printer for continuous processing, since the trimming process is set for each original image, the projection magnification of the imaging lens is applied to each of all the images of one film original. Adjusting the optical magnification and performing the trimming process is troublesome, inefficient, and has a problem that productivity is not improved. In addition, printer users may be characterized by the customer's ability to reproduce the film original image in the finished print, so that the magnification of the imaging lens of the printer is specially adjusted or modified or modified. In some cases, the reproduction limit is full, and on the other hand, some people hate the appearance of edges, and in some cases, allow a large margin in the reproduction limit. But,
Such a special adjustment or modification adjustment of the magnification of the imaging lens of the printer is troublesome, and cannot cope with various adjustments, and in some cases, cannot restore the original image. For this reason, there is a demand for a printer that allows the user to easily adjust the setting value of the magnification of the imaging lens as desired, adjust the reproduction limit of the original image, and easily return to the original setting value. I have.

On the other hand, the problems and demands in such an analog printer are completely the same in a digital print system. However, in a digital photo printer to which the above-described digital printing system is applied, a film original image or a peripheral portion thereof is simply masked, and the masked original image is transmitted to a planar image sensor such as an area CCD using an imaging lens. It only proposes to project and read photoelectrically.It also proposes the relationship between the projected image of the mask image and the effective pixel area of the image sensor, the magnification of the imaging lens and the reproduction limit of the original image, and furthermore, It does not address the problem of image blurring, and it does not disclose the free adjustment or restoration of the magnification of the imaging lens and the reproduction limit of the original image.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to print a plurality of sizes on film originals having a plurality of different film sizes. However, in order to easily adjust the reproduction limit of the carried image to the print according to the user's preference, it is possible to easily adjust the setting value of the magnification of the imaging lens, and to easily restore it after adjustment A method and apparatus are provided.

[0011]

In order to achieve the above object, a first aspect of the present invention is to project an image carried on a film original from a plurality of film originals having different film sizes and types by a zoom lens. A digital print that performs photoelectric image reading by an image sensor, performs digital image processing, and exposes and develops a photosensitive material based on the obtained digital image signal to obtain a print having a reproduced image of an arbitrary print size. A method for reading a carrier ID code from a carrier dedicated to the film original holding the film original at a reading position, and setting a set optical magnification of the zoom lens with respect to the read carrier ID code, The set optical magnification of the zoom lens is set to a standard optical magnification preset for the carrier ID code. From, and provides a digital printing method and sets this standard optical magnification adjustment optical magnification adjusted in accordance with the combination of the print size to be printed the reproduced image and the carrier ID code.

Here, the adjustment amount of the standard optical magnification for obtaining the adjusted optical magnification is preferably 50% to 150%. Further, the setting of the adjustment optical magnification is obtained from a relationship given in advance, the amount of movement of the zoom lens according to the actual optical magnification obtained by adjusting the standard optical magnification,
By moving the zoom lens by this movement amount, reading the carried image of the film original, performing image processing, and comparing the read image of the image sensor displayed on the monitor with the reference line indicating the print finish area. Alternatively, it is preferable to repeat exposure and development to obtain a print of a set print size until the reproduced image of a desired size with respect to the print size is obtained.

According to a second aspect of the present invention, there is provided a film carrier prepared for each different film size and holding a film original at a reading position, a zoom lens for projecting an image carried by the film original, and this zoom lens Moving means, an image sensor that photoelectrically reads the projected carrier image, an image processing means that digitally processes the image signal read by the image sensor, and a digital image signal obtained by the image processing means. And an image output means for exposing a photosensitive material and developing the photosensitive material to obtain a print having a reproduced image of an arbitrary print size, the film original holding the film original at a reading position. Means for reading a carrier ID code from a dedicated carrier; Means for selecting a preset standard optical magnification of the zoom lens for an ID code, and adjusting the selected standard optical magnification in accordance with a combination of the carrier ID code and a print size on which the reproduced image is to be printed. The present invention further provides a digital printing apparatus comprising: means for calculating an adjusted optical magnification; and means for calculating a moving amount of the zoom lens corresponding to the adjusted optical magnification.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A digital printing method and apparatus according to the present invention will be described in detail below with reference to preferred embodiments shown in the accompanying drawings.

FIG. 1 is a schematic diagram showing, in a block diagram, an embodiment of a digital printing apparatus for implementing the digital printing method of the present invention. A digital printing apparatus 10 shown in FIG. 1 includes an image input device 12 for photoelectrically reading images carried on film originals of different film sizes, setting of reading conditions in the image input device 12, and control of the image input device 12 based on the setting. In particular, in the present invention, a control device 1 for determining an optical magnification and an electronic magnification, determining a read pixel region and a cutout pixel region, performing image processing of a read image signal, and automatically setting image processing conditions (auto setup).
4, an image output device 16 for exposing a photosensitive material to an image based on the image signal processed by the control device 14, developing and outputting a print carrying a reproduced image, and an image input device 1.
An image display device (monitor) 18 for displaying an original image read by the image reading device 2 and displaying a reproduced image region and a trimming region in accordance with a print size outputted by the image output device 16; The image signal of the original image read at 12 or processed by the controller 14;
Alternatively, a server or HD for storing an image signal used in the image output device 16, further, image processing conditions, exposure conditions, processing conditions for photosensitive materials, or the like, or an MO (magneto-optical recording medium), a magnetic tape, an FD, or the like An external storage device 20 including a magnetic recording medium and its driver, and a data input device 22 such as a keyboard 22a and a mouse 22b for inputting information such as setting of various conditions, selection of processing, and correction. .

An image input device (hereinafter, referred to as an input device) 12 shown in FIG. 2 is a long negative film or a reversal film, and is a strip film on which a large number of images are taken, or a single reversal film. This is a device that photoelectrically reads images taken on these film originals using films of different types and sizes, such as slides, which are fixed to a frame (mount) as film originals. Image forming unit 2 incorporating frame 13, light source unit 24, carrier base 26, and zoom lens
8. It has a carrier such as a film carrier 32 and a slide carrier 34 (see FIG. 3) which are interchangeably mounted on the image sensor 30 as an area sensor and the carrier base 26. In the input device 12, the strips A or slides B are conveyed in the arrow x direction by the film carrier 32 or the slide carrier 34 mounted on the carrier base 26 to read the reading position Z.
And irradiates the light from the light source unit 24 to the image of the film original to obtain projection light carrying the image photographed on the film original.
An image formed on a film document is two-dimensionally read as an image signal by forming an image at 0 and performing photoelectric conversion in the image sensor 30 to obtain an image signal. Note that such control of the input device 12 is performed by a control unit 70 (see FIGS. 4 and 5) of the control device 14 described later.

The light source unit 24 irradiates a film original (strips A or slide B) so that the image sensor 30 separates the image of the film original into three primary colors of R, G, and B and can read it with high precision. For example, the input device 12 shown in the drawing irradiates the strips A from below to obtain projection light, and the carrier base 26 of the optical frame 13 Light source 35, reflector 35
a, aperture 36, color filter 38, and diffusion box 4
Has zero. In addition, a cooling fan or the like for cooling various members such as the light source 35 is disposed in the light source unit 24, and a shutter for blocking light emitted from the light source 35 as necessary. May be provided. Light source 35
Various known light sources capable of emitting a sufficient amount of reading light for image reading by the image sensor 30 can be used, and examples thereof include a halogen lamp, a xenon lamp, and a mercury lamp.

The stop 36 adjusts the amount of light from the light source 35. In the illustrated example, a logarithmic curve is drawn at the light-shielded portion, and two NDs having different amounts of light passing through in the direction perpendicular to the optical axis L are shown. The amount of light from the light source 35 to the film is adjusted by using a filter so as to approach and separate from each other in a direction perpendicular to the optical axis L. The color filter 38 is formed by adding an R
It has three color filters, a (red) filter, a G (green) filter, and a B (blue) filter. At the time of reading an image, the filter acting on the optical axis L is rotated by rotating its central axis by a rotating means. , R filter, G
The filter and the B filter are sequentially inserted into the optical path L, and the image photographed on the film original is separated into three primary colors of R, G and B and read. The diffusion box 40 emits light from the light source 35, the light amount of which is adjusted by the stop 36, diffuses the read light that has passed through the color filter, and reduces the light amount and the like of the read light incident on the film in a plane orthogonal to the optical axis L. In order to make it uniform without unevenness, in the illustrated example, the inner surface has a configuration in which a diffusion plate is arranged on the upper and lower surfaces of a square prism having a mirror surface, but other known light diffusion means are also various. Available.

Above the light source 24, a carrier base 2 is provided.
6 are arranged. The carrier base 26 has a film carrier 32 or a slide carrier 3 described later on its upper surface.
4 and the like to be placed and held in a predetermined position,
It is fixed perpendicular to the optical frame 13. An opening (not shown) for transmitting light from the light source unit 24 is formed in a portion corresponding to the optical axis L in the carrier base 26. The opening is adjusted according to the maximum screen size so that the light from the light source unit 24 in the input device 12 is sufficiently irradiated on the entire surface of the maximum image surface size (size) of the film original readable by the image sensor 30. Is set.

On the upper surface of the carrier base 26, guide rails 42, 42 are formed in a direction from the near side to the optical frame 12 in the drawing, that is, in the direction of the arrow y perpendicular to the direction of the arrow x, which is the transport direction. On the bottom surfaces of the film carrier 32 and the slide carrier 34, grooves 44, 44 for fitting with the guide rails 42, 42 are formed. Film carrier 32 and slide carrier 34
In each case, the grooves 44, 44 are fitted to the guide rails 42, 42 of the carrier base 26, and are pushed and fixed in the arrow y direction until the end face on the far side in the drawing comes into contact with the optical frame 13. Thus, the positions in the directions of the arrow x and the arrow y are defined, and are positioned and mounted at a predetermined position on the carrier base 26. Also these carriers 3
2, 34 are pulled in the front direction in the figure, and the grooves 44, 44
Can be removed from the carrier base 26 and replaced with each other very easily by pulling them out of the guide rails 42, 42. The film carrier 32 and the slide carrier 34 are located at predetermined positions on the carrier base 26.
There is no particular limitation on the means for mounting.

The film carrier 32 transports a long negative film or a reversal film, which is a so-called strips (sleeve) A, on which a large number of images have been photographed, in the longitudinal direction thereof, and transfers each image photographed on the strips A. The sheet is sequentially transported to a predetermined position on the optical axis L, that is, a reading position Z corresponding to an opening of the carrier base 26 (not shown), and is provided for reading. A guide groove 46 is formed on the upper surface of the film carrier 32 so as to extend from one end to the other at a position intersecting the optical axis L in the transport direction indicated by the arrow x. The guide groove 46 is a groove having substantially the same width as the strips A. The strips A are conveyed in the state where they are inserted in the guide grooves 46 so that their longitudinal directions coincide with the x direction, and each image is sequentially Is transported to the reading position Z on the optical axis L. Therefore, the depth of the guide groove 46 is the same as the strip A
(I.e., the emulsion surface) at a predetermined position in the optical axis L direction (the depth of focus direction).

Further, at the reading position Z of the film carrier 32, an opening through which light from the light source 24 passes is formed. The opening functions as a mask that determines the size of the image of the film original read by the image sensor 30 in the input device 12, and the shape and size (size) of the opening, that is, the size of the opening area of the mask, In accordance with the screen size (size) of a film document, for example, a 135-size strip A, which is set on the carrier 32, the image is set so as to be inscribed to the screen size so that the image is minimized. Note that the opening at the reading position Z of the film carrier 32 occupies a different predetermined position on the same optical axis L as the above-described opening of the carrier base 26, and is emitted from the light source unit 24 to close the opening of the carrier base 26. It goes without saying that the transmitted light can satisfactorily irradiate the entire opening of the film carrier 32 where the film original of any screen size is installed. Therefore, the light emitted from the light source unit 24 and defined by the mask is input to the input device 1.
2, it is possible to sufficiently irradiate the entire screen size of the original image that can be read. The opening formed in the film carrier 32 may have a size corresponding to the opening of the carrier base 26, and a configuration may be adopted in which masks corresponding to films of various sizes can be exchanged and mounted on the film carrier 32.

In the guide groove 46, a transport means 48 for strips A, a film crimping unit 50, and a screen detection sensor 52 are arranged from upstream to downstream in the x direction. The conveying means 48 includes a motor 48a and a conveying roller 48b.
And intermittently transports the strips A in the direction of the arrow x. The strips A are detected by a screen detection sensor 52 for detecting a captured image or a DX code.
When it is detected that the image has arrived at the reading position Z, the operation is stopped. When a signal indicating the end of reading is received from the control device 14, the transport of the strip A is started again, and the next image is transported to the reading position Z. The film pressure bonding unit 50 rotates the pressure bonding member 50b, which has an opening through which the projection light of the strips A passes through the rotation axis 50a, in the direction of the arrow b, and arranges it at the reading position Z when reading an image. By compressing the strips A into the guide grooves 46, the curls of the strips A are corrected, and the entire surface of the image is held at a predetermined position in the optical axis L direction, that is, a document setting position. Note that the transport of the strips A in the film carrier 32 and the operation of the film crimping unit 50 are not limited to those automatically controlled using the screen detection sensor 52 or the like as in the above-described example. The rotation of the pressure bonding member 50b and / or the stop / drive of the transporting means 48 may be performed manually.

The slide carrier 34 shown in FIG.
Carrier base 2 in exchange for film carrier 32 shown in
6, a slide in which a film on which an image has been photographed is held by a frame, that is, a slide B which is conveyed in the direction of the arrow x, is stopped at the photographing position Z, is subjected to image reading, and has been read. B is collected. A guide groove 54 for guiding the slide B is formed on the upper surface of the slide carrier 34 so as to extend from the end to the end in a position intersecting with the optical axis L in the slide B transport direction indicated by the arrow x. . The depth of the guide groove 54 depends on the image surface of the slide B.
It is set so as to be substantially at a predetermined position in the optical axis L direction (the depth of focus direction). Further, similarly to the film carrier 22, the slide carrier 34 has an opening at the reading position Z that functions as a mask through which light from the light source unit 24 passes. In addition, like the film carrier 22,
The mask may be separately provided so as to be exchangeable according to the size of the slide B.

The reading position Z on the upper surface of the slide carrier 34
A cover 56 is arranged in the vicinity of. Cover 56
Is a through hole 56a through which the projection light of slide B passes
Is formed to cover the slide B at the reading position Z at the time of normal reading, but can be rotated in the direction of arrow c in the drawing, and the reading position Z can be opened as necessary. Although not shown below the cover 56, it has a slightly widened guide groove 54, and its entrance and the vicinity of the reading position Z are automatically set by a slide B or a conveying means sent by an operator. A sensor for detecting the tip of the slide B conveyed to the guide groove 54 is disposed. Further, on both sides of the wide portion of the guide groove 54, a plurality of rollers for conveying the slide B are disposed, for example, six rollers, respectively. Is a transport roller for the slide B that rotates at a predetermined speed by a drive source (not shown), and the lower roller is a driven roller that can bias the slide B upward by a biasing means such as a spring. At the reading position Z, if necessary, at the time of reading, the leading end of the slide B presses the slide B into the guide groove 54, and the slide B
A slide holder that corrects distortion or lifting of the (frame) may be arranged.

A slide collection box 58 for collecting the slides B for which reading has been completed is disposed downstream of the conveyance of the cover 56 (in the direction of the arrow x). The illustrated slide collection box 58 is configured to be sunk under the already collected slide B to house the slide B, and the read slides B are sequentially stacked from below and collected. You. In addition, the slide collection box 58 may be a box or the like that accommodates the slide B dropped by the pushing of the slide B conveyed later.

In the present invention, the carrier for setting the film original at the reading position is preferably an exchangeable carrier which corresponds one-to-one with each different type and size of the film original. In addition to the above-described film carrier 32 and slide carrier 34 for automatically or semi-automatically transporting the slide A and the slide B to the reading position Z, an opening for passing light from the light source unit 24 is formed at the reading position Z, and a guide rail is provided. Any carrier may be used as long as it has a groove to be fitted into 42, 42. Even if the operator is a manual carrier for fixing strips and slides at a predetermined position, the operator can set the film at an arbitrary position. Alternatively, a trimming carrier or the like that performs reading by arranging slides may be used. Each of these carriers is provided with a carrier ID code. When each carrier is mounted on the carrier base 26 of the optical frame 13 and is electrically connected, the corresponding carrier ID code is transmitted to the control device 14. It is composed of

An image forming section 28 for forming an image of the projection light of the strips A and the slide B on the image sensor 30 is disposed above the optical frame 13. The image forming unit 28 includes a zoom lens unit 62, a magnification adjustment motor 63, and a focus adjustment motor 64, which are vertically mounted on a surface plate 60 fixed to the optical frame 13. The lens unit 62 changes the optical magnification according to the size of the strips A and the slide B, and changes the size of the projection light to the maximum size that can be received by the image sensor 30 (that is, the required image area is Size inscribed on the surface)
A zoom lens group 66 in which a known zoom lens is incorporated for adjusting an image to form an image on the image sensor 30;
A focus lens group 68, which is located above (on the downstream side in the direction of the optical axis L) and incorporates a well-known focus adjustment lens that adjusts the focus of the projection light on the light receiving surface of the image sensor 30.

The zoom lens group 66 includes a magnification adjusting motor 63 whose adjustment gear 66a is a zoom motor.
The motor 63 forms a projection image on the image sensor 30 with a size corresponding to the standard optical magnification inherent to the motor 63 or the optical magnification set by the method of the present invention. The movement is adjusted in the optical axis L direction. The drive amount of the magnification adjusting motor 63 is determined by a magnification-pulse table stored in the memory 78. The focus gear group 68 has an adjustment gear 68a meshed with a gear 64a rotated by a focus adjustment motor 64, and the focus is adjusted by the motor 64, that is, the focus lens group 68 is moved and adjusted to a focus position. The drive of the focus adjustment motor 64 is controlled by the automatic focus adjustment means 80 of the control device 14, and the input device 12 shown in the illustrated example is used.
Performs automatic focus adjustment (autofocus: AF) using the obtained image read by the image sensor 30 and the contrast thereof by a TTL (Through The Lens) method. Note that a temperature sensor such as a thermistor may be attached to the imaging unit 28 in order to correct a change in the focal position of the lens unit 62 due to a change in the lens temperature.

The projection light of the strips A and the slide B is focused on the image sensor 30 by the lens unit 62 and is read photoelectrically. Note that a known shutter used for dark current correction or the like may be arranged between the lens unit 62 and the image sensor 30.
In the input device 12 that performs two-dimensional image reading, the image sensor 30 is an area sensor.
It is a CCD sensor of 80 × 920 pixels. In the illustrated device, the image sensor 30 is configured to be movable in the x and y directions by an amount corresponding to a half pixel,
Thereby, the number of read pixels can be apparently increased up to four times. The image input device 12 is basically configured as described above.

A signal from the image sensor 30 is output to the control device 14. As shown in FIG. 1, the control unit 14 controls each unit and the whole of the image input device 12 and a control unit 70 that controls the digital printing apparatus 10 of the present invention.
And a signal processing device 72 that receives an output signal from the image sensor 30 of the input device 12 and performs predetermined signal processing to obtain an input image signal, and performs required or desired image processing on the obtained image signal. An image processing device 74 that outputs the image data to the image output device 16 as an output image signal. The control unit 70 controls not only the signal processing operation of the signal processing device 72 but also each unit and the whole of the input device 12, and each means for performing the method of adjusting the set optical magnification of the zoom lens according to the present invention. Optical magnification adjusting means 7 comprising
And memory for storing reading optical magnification information, zoom lens movement amount information, image sensor information, carrier information, output pixel density, print size, magazine information, output margin, input / output pixel deficiency, and the like. 78, an automatic focus adjustment unit 80 for performing automatic focus adjustment using the obtained image read by the image sensor 30, an image rotation unit 82, a negative / positive conversion unit 84, and the like. Further, the control unit 70 performs operations of the input device 12, setting of reading conditions such as reading optical magnification, setting of print size (size of output image) and main subject, operation instructions such as color / density correction, and input. A keyboard 22a, a mouse 22b, a monitor 20 for displaying an image read by the image sensor 30, and the like are connected.

FIG. 4 shows the control unit 70 and the signal processing device 7.
2 shows a detailed block diagram of one embodiment. In the control unit 70, the CCD 30 includes a movement control circuit 30 in the xy direction for performing a pixel shift for apparently increasing the number of read pixels.
a to the CPU bus. The image information read by the CCD 30 is input to the signal processing device 72.
In the signal processing device 72, the analog image data read by the CCD 30 is converted into digital image data by an A / D converter 86,
The offset is corrected, and then dark correction is performed by the dark correction circuit 88. Thereafter, the LOG conversion circuit 89 outputs the LO
After being G-converted and subjected to shading correction by a shading correction circuit 90 to become an input image signal, it is stored in the frame memory 91 and output to the image processing device 74. The image data corrected in darkness by the darkness correction circuit 88 is input to the automatic focus adjustment unit 80. The automatic focus adjustment means 80 first controls the focus adjustment motor 64 to move the lens unit 62 to each point at a predetermined interval in a predetermined search area, and obtains dark-corrected image data at each point, By repeatedly calculating the image contrast integrated value,
The position where this becomes the maximum is determined as the focus position (focus position), and the focus adjustment motor 64 is controlled to the focus position via the CPU bus to set the lens unit 62.

On the other hand, from the carrier ID discriminating means 31, the loaded carrier ID code of either the film carrier 32 for the strip A or the slide carrier 34 for the slide B is sent to the keyboard 22a or the mouse 2a.
From 2b, reading conditions such as input, selected, added or modified registered print size, adjustment value of reading optical magnification,
Information such as recording conditions such as color and / or density correction, dodging correction, and gradation correction is transmitted to the CPU via the CPU bus.
76, a memory 78, and an automatic focus adjustment unit 80. The light source 35, the stop (iris stop) 36, and the color filter 38 of the light source unit 44 correspond to the CPU 76 and C
The light source control circuit 35b, the aperture control circuit 36a, and the color filter control circuit 38a connected via the PU bus
The light intensity, aperture, and type of color filter are controlled.

Set optical magnification adjusting means 75 of CPU 76
Means for selecting the standard optical magnification stored in the memory 78 from the carrier ID code input from the carrier ID discriminating means 31 and a combination of the carrier ID code (film original type, size, mask size) and print size Means for calculating the adjusted optical magnification from the standard optical magnification selected according to the adjusted optical magnification set value of the zoom lens unit 62 input by the data input device 22, and the optical magnification stored in the memory 78. From a relationship between the amount of movement of the zoom lens group 66 of the zoom lens unit 62, that is, the number of pulses given to the magnification adjusting motor 63, for example, a table (L) representing these relationships
UT) for calculating a moving amount (number of pulses) corresponding to the adjusted optical magnification calculated from the UT). The operation of each means will be described later.

The memory 78 has carrier ID information of a carrier mounted on the carrier base 26, mask size (dimension information in the main and sub scanning directions) of the carrier, and carrier information such as the type and size of a film set on the carrier. , The position of the zoom lens group 66 of the zoom lens 62 according to the carrier ID code and the corresponding standard optical magnification or the set optical magnification (movement amount from the home position HP,
That is, the reading optical magnification information necessary for carrying out the method of the present invention, such as a magnification-pulse table indicating the number of pulses applied to the magnification adjusting motor 63, the size of the image sensor 30 (dimension information in the main-sub scanning direction) and the pixel Image sensor information such as density and effective pixel area (number), output pixel density of the image output unit 16, registered print size (dimension information of long and short sides (length and width)), and information of the magazine loaded in the image output unit 16 Magazine information such as the ID code and the size (width information) and type of the photosensitive material stored in the magazine, consideration of the meandering of the photosensitive material in the transport device of the image output unit 16 and the main scanning length error by the light beam scanning device. Output margin, the input pixel defect (number of pixels) due to image processing such as LPF (low-pass filter) and electronic scaling in the image processing device 74. SM (unsharpness mask)
Various information such as information necessary for controlling the operation of the digital printing apparatus 10 of the present invention is stored, including information such as output pixel loss (the number of pixels) due to image processing such as.

The image rotation control means 82 provided in the control unit 70 transmits information on the loaded photosensitive material, particularly width information, from the image output unit 16. 22 to determine whether the recording direction of the output image, that is, the main scanning direction is the vertical or horizontal direction of the read image, from the input information of the print size, and convert the vertical or horizontal direction of the read image, that is, 90 °. The necessity of rotation is determined, and when rotation is necessary, the image is rotated. By the way, the image output device 16 uses a long photosensitive material wound in a roll shape to move the photosensitive material conveyed in the sub-scanning direction in a one-dimensional direction substantially orthogonal to the sub-scanning conveyance direction, that is, in the main scanning direction. The photosensitive material is two-dimensionally exposed by performing scanning exposure (printing) with a light beam deflected to the right. For this reason, whether the main scanning direction of the exposure is the longitudinal direction or the short direction of the set print size is uniquely determined according to the width of the photosensitive material.

On the other hand, in the input device 12, the direction of the strip A set on the film carrier 32 and the direction of the slide B set on the slide carrier 34 are fixed, and the original image area read by the image sensor 30 is made as large as possible. If this is the case, the direction of the film original, that is, the shape of the original image, and thus the shape of the carrier mask (for example, especially the aspect ratio) is uniquely determined. For this reason, one line of the document image read by the input device 12 is
May not coincide with one line in the main scanning direction. As a result, before the image signal stored in the frame memory 91 is exposed at least by the image output unit 16 by the image rotation control unit 82, the image signal is processed and the image (image area) is rotated by 90 °, That is, it is necessary to make the line direction of the output image coincide with the line direction of the exposure by rearranging the pixels or changing the access order of the frame memory addresses based on the conversion formula.

Further, the control unit 70 includes the signal processing device 7
2 is provided with a positive / negative conversion circuit 84 for performing a positive / negative inversion on the image data on which predetermined signal processing has been performed. In this case, the image information subjected to the predetermined image processing is converted before output to the image output device 16 and output as a negative image (or vice versa). The method of the positive-to-negative conversion or the negative-to-positive conversion is not particularly limited, and may be a known conversion method (image processing method). In the present invention,
Whether strips A or slide B is a negative film or a reversal film is determined by the carrier ID transmitted from the carrier ID discriminating means 31 when the carrier is loaded.
Although it is determined from the information stored in the memory 78 by the D code, the present invention is not limited to this, and may be input by an operator.

By the way, as is well known, in various conventional printers, usually, prior to precise reading (main (main) scan) for image output, an original image is set for setting image processing conditions and the like. Prescan is performed for coarse reading. Therefore, the signal processing device 7 shown in FIG.
As shown in FIG. 5, the second frame memory 91 includes a pre-scan frame memory 91a and a main scan frame memory 91b configured as a toggle memory.
Consists of The image processing device 74 used in the present invention converts the image signals of the film original stored in the frame memories 91a and 91b, for example, the image signals of the three primary colors R, G and B of one image. The required image processing is performed.

As shown in FIG. 5, the image processing device 74 performs image processing on a pre-scan image signal, for example, a G color image signal stored in the pre-scan frame memory 91a for display on the monitor 18. A display image processing circuit 92 and an image of a pixel in a cut-out pixel area (the number of pixels) determined by the method of the present invention from a main scan image signal stored in a main scan frame memory 91b to be output to the image output device 16 Cut out the signal, apply image processing for proper printing, LP for dodging
F (low-pass filter) processing, enlargement / reduction (enlargement / reduction) processing of a cut-out image area (number of pixels) according to the electronic magnification determined by the method of the present invention, and USM (unsharpness) for sharpening the image Image processing circuit 94 for performing a mask) process to obtain an output image signal
Image processing condition setting for setting the image processing condition of the main scan image signal in the recording image processing circuit 94 from the pre-scan image signal, the main subject set as required, and the desired processing condition input by the operator. Means 9
6 and the like.

In the illustrated example, an image is read by the input device 12 and processed by the control device 14. However, the present invention also includes a storage device 20 such as a server, HD, MO, and FD. The image signal stored in the storage medium such as is read into the frame memory 91 of the control device 14,
The same processing as described above may be performed, or conversely, the image signal stored in the frame memory 91 may be stored in the storage device 20 and used for later use.

Next, the image output unit 16 receives an image signal from the control unit 14, and receives a red (R) exposure, a green (G) exposure, and a blue (B) modulated by the image signal in the light beam scanning device. While deflecting the exposure light beam in the main scanning direction, the conveying device pulls out the long photosensitive material wound in a roll form from the magazine, and conveys it in the sub-scanning direction orthogonal to the main scanning direction, so that it is two-dimensional. The exposed photosensitive material P is subjected to color development in a developing device,
Bleaching and fixing, washing with water, drying by a drying device, cutting by a discharge device for each frame, and outputting as a print.

By the way, the digital printing apparatus 10 of the present invention shown in FIG. 1 can set a plurality of sizes of a film original to be a subject (processing target) and a print size to be output. A plurality can be set in the memory 78 via the CPU 76 and can be arbitrarily combined. The film original has a dedicated carrier (see the film carrier 32 in FIG. 2 and the slide carrier 34 in FIG. 3) for each size and type, and the carrier base 26 of the image input device 12 shown in FIG.
It is configured to be removable. When the carrier, for example, the film carrier 32 is mounted on the carrier base 26 as shown in FIG. 2, the carrier ID code of the film carrier 32 is transmitted to the CPU 76 and recognized. At the same time, from the image output unit 16, the magazine ID code of the magazine
6 and is recognized. The memory 78 of the control device 14 stores mask dimension information of the film original, width information of the photosensitive material, and the like, but these information cannot be rewritten by the user.

On the other hand, a plurality of print sizes to be output are set in the memory 78 at the time of shipment from the factory, and the print sizes registered in the memory 78 are displayed as a print size list on the screen of the monitor 18 via the CPU 76. Is displayed, and the user can use the keyboard 22a or the mouse 22b.
The user selects a desired print size displayed on the screen of the monitor 18 by using a data input device such as. When the desired print size is not registered, the user can newly register or correct the print size using the keyboard 22a or the like, and can rewrite the contents of the memory 78. Also, the digital printing device 1 of the illustrated example
At 0, a standard optical magnification that is uniquely determined by only the carrier ID code is stored in the memory 78 at the time of shipment from the factory for the zoom lens setting optical magnification.

Here, in the digital printing apparatus 10, when a carrier ID code or a magazine ID code is acquired and an output print size is selected, a magnification is automatically calculated by the CPU 76, and a zoom lens setting optical magnification and an electronic magnification are calculated. A scaling factor is set. That is, first, the standard optical magnification unique to the carrier ID code is automatically set from the memory 78 as the zoom lens setting optical magnification. In the digital printing apparatus 10 in the illustrated example, at the time of pre-scanning, the effective pixel area of the image sensor 30 onto which the carried image of the film original is projected (for example,
The image signal taken from all the pixels of 1380 pixels × 920 pixels) is taken into the frame memory 91 (pre-scan frame memory 91a) of the signal processing device 72 of the control device 14, thinned out and displayed on the monitor 18 (for example, ,
(345 pixels × 230 pixels).

On the other hand, also in the case of the main (fine) scan, similarly, the image signals of all the pixels in the effective pixel area of the image sensor 30 are read. However, there are multiple sizes of film originals, and therefore multiple mask sizes,
Due to various differences, the projected images of the mask images of all the film originals (original images in the opening area of the mask) are not projected on all the effective pixel areas of the image sensor 30, but are generally projected on the inside thereof. You. For this reason, it is necessary to extract, from the read image signals of all the pixels in the effective pixel area, image signals of only the pixels in the mask image area as image signals of the pixels in the input pixel area used for reproduction in printing. Therefore, in the present invention, the image signal of the pixel of the edge of the film original or the edge of the mask can be reliably removed even if the deviation of the optical axis, the magnification error, the stop position error of the film original, etc. Image signals of as many pixels as possible in the opening area can be reliably taken out,
As the image signal of the pixel in the input pixel area, the frame memory 9
1 (91b), the size (number of pixels) of the input pixel area is set with respect to the size (number of pixels) of the effective pixel area of the image sensor 30. Note that the main scan frame memory 91b may capture image signals of all pixels in the effective pixel area of the image sensor 30 and read out only image signals of pixels in the input pixel area.

On the other hand, also in the optical system of the input device 12,
The standard optical magnification is set so that the projected image of the mask image of the film original enters the effective pixel area of the image sensor 30 with a margin so that the above relationship is sufficiently satisfied. Therefore, the standard optical magnification is such that when the mask image of the film original is projected onto the effective pixel area of the image sensor 30 and is output as a print of a desired print size, the edge of the film original appears, the edge of the mask, etc. The optical magnification is such that no image is projected and the use of the effective pixel area of the image sensor 30 is high and high-definition image quality can be secured. By the way, when the zoom lens unit 62 is actually set to this standard optical magnification, the CPU 76 sets the zoom lens unit 62 to a position corresponding to the set optical magnification from the magnification-pulse table stored in the memory 78. The number of pulses from the origin applied to the magnification adjustment motor 63 to obtain the amount of movement from the home position (origin) required to move the zoom lens group 66 is read out, and the magnification adjustment motor 63 is moved by the number of pulses. When driven, the zoom lens group 66 is moved and stopped at a position where the standard optical magnification is obtained.

Next, the CPU 76 uses various setting values set beforehand at the time of factory shipment, and outputs, for example, the meandering and recording length error of the photosensitive material of the image output unit 16 according to the output print size. A predetermined output pixel density (for example, 300 pixels) is obtained from an image signal of a pixel in an input pixel area (for example, 1340 pixels × 920 pixels) in consideration of a margin amount and a pixel loss in the image processing device 74.
dpi) and the desired print size (eg, 127 mm
.Times.89 mm) to produce an image signal of pixels in an output pixel area (for example, 1531 pixels.times.1082 pixels) necessary for outputting a print.
0%), the image signal of the pixel is read into the signal processing device 72 in consideration of the blur, and the effective pixel of the image sensor 30 is taken into the frame memory 91 (91a, if necessary 91b). A pixel area (for example, 1292 pixels × 918 pixels) to be cut out from the area is determined, and a monitor (for example, 345 pixels × 230 pixels) 18 has a finished print area (for example, 323 pixels × 229 pixels).
Is displayed as a reference line.

In the illustrated digital printing apparatus 10,
Thus, the image of the finished print area within the reference line displayed on the monitor 18 is output from the image output device 16 as it is. However, when it is desired to adjust the original image reproduction area on the print, that is, the amount of shaking of the original image in the reproduced image of the print, a trimming operation can be performed. This trimming operation may be performed by the user directly specifying the optical magnification or specifying the start and stop of the zoom by the magnification adjustment motor 63. In this case, the actually set magnification is displayed on the monitor 18. Good to be. After the designation, the user returns to the print screen, and the image sensor 3 displayed on the monitor 18 is displayed.
The image of the predetermined trimming area is confirmed by the image 0 and the reference print line indicating the finished print area, that is, the trimming area. If the desired trimmed image has not been obtained, the user can repeat such trimming operation by adjusting the optical magnification until the desired trimmed image is obtained. In the present invention, since the reference line displayed on the monitor 18 sufficiently considers the image blur that occurs until the original image read by the image sensor 30 is reproduced on the print, the reference line is actually used. Since there is almost no deviation from the printed reproduced image, it is sufficient to check the trimmed image on the monitor 18, but it is needless to say that the trimming operation may be performed while actually outputting the print.

When a desired trimmed image is obtained and reproduced on a print, and the trimming operation is completed, a predetermined adjusted optical magnification set for adjusting the original image reproducing area on the print is obtained. Returns to the standard optical magnification previously set uniquely for the digital printing apparatus of the present invention. For this reason, when it is desired to adjust the original image reproduction area on the print for the type of the film original, for example, for all original images of one reversal film, it is possible to perform each of the trimming operations one by one. As with analog printers, it is extremely cumbersome to do everything, as described above. In contrast,
In the digital printing apparatus of the present invention, the original image reproduction area on the print can be constantly set to a predetermined area according to the user's preference, and in response to this, with respect to a preset standard optical magnification, A correction coefficient can be set. This correction coefficient is used to adjust the standard optical magnification,
That is, it becomes a magnification fine adjustment value.

The digital printing apparatus of the present invention is basically configured as described above. Hereinafter, the digital printing method of the present invention will be described in detail with reference to FIG. First, as shown in FIG. 6, the image input device 12 is loaded with a carrier for holding a film original whose permanent image reproduction area on a print is to be set to a predetermined area constantly. Carrier ID as reading means
It is assumed that the code is read and recognized, the standard optical magnification corresponding to the carrier ID code is read from the memory 78 as the read optical magnification T1, and functions as a selection means therefor.

Here, when the user selects the magnification adjustment mode from the menu, a list of carriers and print sizes is displayed on the monitor 18. Here, the user selects a combination of the target carrier (the carrier ID code of which is recognized) and the print size using the data input device 22, and adjusts the combination, that is, the fine adjustment value T2 for the magnification. Enter a numeric value. As the magnification fine adjustment value T2, 100% is set (stored) as a default at the time of shipment from the factory.
You can enter a number in the range up to. When the numerical value of the magnification fine adjustment value T2 is input by the user, the stored value in the memory 78 of the magnification fine adjustment value T2 corresponding to the combination of the ID code of the carrier and the print size is updated.
Next, the CPU 76 calculates the actual optical magnification T3 actually set from the reading optical magnification T1 and the magnification fine adjustment value T2 in accordance with the following equation as an arithmetic unit for adjusting the optical magnification for adjusting the optical magnification of the zoom lens unit 62. I do. T3 = T1 × T2 / 100

Next, the CPU 76 sets the zoom lens group 6
As a means for calculating the movement amount of 6, the magnification adjustment for moving the zoom lens group 66 from the origin (home position) from the actual optical magnification T3 calculated by the above equation with reference to the magnification-pulse table in the memory 78. It is converted into a scanner control value P1 represented by the number of pulses applied to the motor 63.
Since this magnification-pulse table is set as a design value, all devices are the same, but the devices always have machine errors due to component errors, assembly errors, adjustment errors, and the like. A magnification calibration correction pulse P2 unique to the apparatus for actually adjusting the difference to the actual optical magnification T3 is read from the memory 78, and an actual scanner control value P3 represented by the number of pulses actually applied to the magnification adjustment motor 63 is obtained. It is calculated from the following equation. It should be noted that the magnification calibration correction pulse P2 is an adjustment parameter for adjusting the machine difference at the time of shipment from the factory. P3 = P1 + P2

The magnification adjusting motor 63 is driven by the actual scanner control value P3 thus obtained, and the zoom lens group 66 is moved to set the optical magnification of the zoom lens unit 62 to the actual optical magnification T3. On the other hand, thereafter, the display screen of the monitor 18 returns to the print screen, and the image input device 1
In 2, a film original image is read by the image sensor 30, and a pre-scan image is displayed on the monitor 18. The user compares the original image display area displayed on the monitor 18 with the reference line indicating the finished print area, or outputs the read actual scan image as a print from the image output device 16 to print the image. The state of adjustment of the upper document image reproduction area is visually checked, and if necessary, the processing is repeated until a desired document image reproduction area is obtained on a desired print.

Here, in the present invention, the monitor 18
The reference line displayed in the area (1) takes into account the image blurring that occurs before the original image read by the image sensor 30 is reproduced on the print, so that the reference line in the finished print area indicated by the reference line is displayed. Since there is no deviation between the range of the image and the reproduced image actually printed, it is of course possible to check the adjustment state on the monitor 18 or to check the adjustment state by actually outputting the print. A measurable original such as a scale is used as the film original, and the original such as the scale is displayed on the monitor 18.
Alternatively, the print is actually output, and the scale displayed or output is measured to obtain the fine adjustment value T for the magnification.
2 can also be calculated.

In this manner, the magnification fine adjustment value T2 of the standard optical magnification T1 for obtaining the original image reproduction area desired by the user on the print is digitally corresponding to the combination of the carrier type (film original size) and the print size. It can be set as a default for the printing device 10.
Therefore, when the same combination is selected, the memory 78
Is read, the original image reproduction area on the same print desired by the user can be obtained. By the way, when it is desired to return to the state at the time of factory shipment, the stored value of the memory 78 can be easily restored by resetting the magnification fine adjustment value T2 to 100%.

The setting optical magnification adjusting method of the digital printing method of the present invention is basically configured as described above.
Hereinafter, the operation of the digital printing apparatus of the present invention will be described. First, when the power of the digital printing apparatus 10 is turned on, the CPU 76 of the control device 14 automatically acquires information on the carrier and the photosensitive material. Here, the operator checks the carrier information and the information of the photosensitive material displayed on the screen of the monitor 18 visually, or replaces the carrier and the magazine 114 if necessary. When exchanged, the CPU 76 is set to a new carrier or magazine I
Obtain the D code and change the monitor display. Further, the operator inputs a print size. Subsequently, in the digital printing apparatus 10, when a specific magnification fine adjustment value is set by the digital printing method of the present invention, a magnification such as an optical magnification or an electronic enlargement / reduction magnification is automatically set based on the specific magnification fine adjustment value. The zoom lens unit 62 is set to the specific optical magnification that has been set.

Next, if it is confirmed that the digital printing apparatus is in a predetermined start-up state, such as the amount of light from the light source unit 24 of the input device 12, the operator can operate the first image captured on the strip A. Is loaded into the film carrier 28 so that the reading position Z is at the reading position Z. Here, when an instruction to start reading is issued, the input device 1
In 2, the pre-scan is first started. When the pre-scan is started, the light inserted into the optical path L by the light source unit 24 and adjusted by, for example, the G filter of the color filter 38 passes through the strip A and the lens unit 6.
2, the image sensor 30 as a projection image of the original image
Is formed at the optical magnification set by the method of the present invention in the effective pixel area, the G original image is read, sent to the control device 14, subjected to predetermined signal processing by the signal processing device 72, and then subjected to pre-scanning. Is stored in the frame memory 91a. Next, similarly, for example, the B image and subsequently the R image are read, sequentially stored in the frame memory 91a, and the prescan is completed.

At the same time, in the control device 14, the prescan G image is read from the frame memory 91a by the image processing device 74, image-processed by the display image processing circuit 92, and displayed on the monitor 18 together with a reference line indicating the finished print area. Will be displayed. The main subject is set using the document image displayed on the monitor 18, and the image processing conditions are set by the image processing condition setting means 96 according to the obtained image information and the main subject. In the section 70, adjustment of the aperture 36 and the like are performed. The control unit 70
In, the automatic focus adjustment of the zoom lens unit 62 by the automatic focus adjustment means 80 is performed using the pre-scan image processed by the signal processing device 72. Thereafter, when the main scan is started, the G image, the B image, and the R image of the film original are sequentially read and sent to the control device 14 in the same manner as in the pre-scan, and are sent to the signal processing device 7.
2 after the signal processing in the main scan frame memory 9
1b. Subsequently, in the image processing device 74, the image signal of the pixel in the cut-out pixel area determined by the electronic scaling factor is read from the frame memory 91b, and the recording image processing circuit 93 performs LPF, scaling (electronic scaling), USM. Image processing such as, if necessary,
The image is rotated 90 degrees by the image rotation control unit 82 and the negative / positive inversion is performed by the negative / positive conversion unit 84, and the image signal of the transmission output pixel area (the number of pixels) is transmitted to the image output unit 16.

On the other hand, in the image output unit 16, the photosensitive material P pulled out of the magazine is transported to the image position information forming section, and after the frame information is formed, is transported to the exposure section. In the exposure section, the light beam is modulated by the image signal transferred from the control device by the light beam scanning device, and the modulated light beam is deflected in the main scanning direction to scan and expose the photosensitive material P conveyed in the sub-scanning direction. Form a latent image. The photosensitive material P on which the latent image is formed is conveyed to the back print unit, backprinted with information such as the film shooting date, stored in the reservoir, and conveyed from the discharge unit to the developing device. The photosensitive material P conveyed to the developing device is sequentially developed by being subjected to color development, bleach-fixing, and washing processes in each tank while being conveyed at a predetermined speed, and is then dried by a drying device. Is cut for each print in accordance with the frame information in the cutting section to be a finished print, and stored in a sorter in accordance with the sort information.

Although the digital printing method and apparatus of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the gist of the present invention. Of course it is good.

[0062]

As described in detail above, according to the present invention,
Fine adjustment of the shading of the film original image can be performed according to the user's preference, that is, the reproduction area of the film original image on the print can be adjusted according to the combination of the size of the film original and the print. Can be changed from the standard optical magnification to the set value of the optical magnification for enabling this adjustment as an initial set value, and the original state before the change can be easily returned. Further, according to the present invention, a finished print area in which image blur generated after reading of a film original image such as image blur in an image output device or pixel defect in an image processing device is incorporated together with a film original image is incorporated in advance. Can be displayed on the display device as a reference line, and since there is no shift between the display image within the reference line and the reproduced image of the print, the reference line indicating the finished print area displayed on the display device. It is possible to easily and accurately check the original image reproduction area on the print due to the shift of the film original image, and the adjustment operation can be performed extremely easily and accurately.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of a digital printing apparatus according to the present invention for implementing a digital printing method according to the present invention.

FIG. 2 is a schematic perspective view of an embodiment of an image input device of the digital printing device shown in FIG.

FIG. 3 is a schematic perspective view of an embodiment of a slide carrier used in the image input device shown in FIG.

FIG. 4 is a block diagram of one embodiment of a control device of the digital printing apparatus shown in FIG.

5 is a block diagram of an embodiment of an image processing device of the control device shown in FIG.

FIG. 6 is a flowchart showing one embodiment of a digital printing method according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 digital printing device 12 image input device 14 control device 16 image output device 18 display device (monitor) 20 storage device 22 data input device 24 light source unit 26 carry base 28 imaging unit 30 image sensor (CCD) 32 film carrier 34 slide carrier 62 zoom lens unit 70 control unit 72 signal processing device 74 image processing device 75 setting optical magnification adjusting means 76 CPU 78 memory 91, 91a, 91b frame memory 92 display image processing device 94 recording image processing device

Claims (4)

[Claims] 1. A digital image obtained by projecting an image carried on a film original from a plurality of film originals having different film sizes and types by a zoom lens, photoelectrically reading the image by an image sensor, and performing digital image processing. A digital print method for exposing a photosensitive material based on a signal, developing the print, and obtaining a print having a reproduced image of an arbitrary print size, comprising: a carrier dedicated to the film original that holds the film original at a reading position. Read the carrier ID code,
When setting the set optical magnification of the zoom lens with respect to the read carrier ID code, the set optical magnification of the zoom lens is set to the carrier ID.
From a standard optical magnification preset for a code, the standard optical magnification is set to an adjusted optical magnification adjusted according to a combination of the carrier ID code and a print size on which the reproduced image is to be printed. Digital printing method. 2. The digital printing method according to claim 1, wherein an adjustment amount of the standard optical magnification for obtaining the adjusted optical magnification is 50% to 150%. 3. The setting of the adjustment optical magnification is performed by obtaining a moving amount of the zoom lens according to a real optical magnification obtained by adjusting the standard optical magnification from a predetermined relationship, and setting the adjusting optical magnification by the moving amount. Moving the zoom lens, reading the image carried on the film original, performing image processing, exposing, and developing to obtain a print of a set print size means obtaining the reproduced image of a desired size with respect to the print size. The digital printing method according to claim 1, wherein the method is repeated until the printing is completed. 4. A film carrier prepared for each different film size and holding a film original at a reading position; a zoom lens for projecting an image carried on the film original;
Moving means for the zoom lens, an image sensor for photoelectrically reading the projected carried image, image processing means for digitally processing an image signal read by the image sensor, and a digital signal obtained by the image processing means. An image output means for exposing and developing a photosensitive material based on an image signal to obtain a print having a reproduced image of an arbitrary print size, wherein the film original is held at a reading position. Means for reading a carrier ID code from the carrier dedicated to the film original, means for selecting a standard optical magnification of the zoom lens preset for the read carrier ID code, and setting the selected standard optical magnification to Carrier ID
Means for calculating an adjusted optical magnification by adjusting according to a combination of a code and a print size on which the reproduced image is to be printed; and means for calculating a movement amount of the zoom lens corresponding to the adjusted optical magnification. A digital printing device characterized by the above-mentioned.