Method of and apparatus for producing reprint

Claim 3

A method of producing a reprint according to claim 1, wherein said step (a) includes the steps of (c) detecting said first set of data, (d) detecting said second set of data, and (e) inputting said third set of data.

Claim 4

A method of producing a reprint according to claim 2, wherein in a case wherein said steps (c) and (d) are performed, both said image on said original-image film and said image on said printed sheet are illuminated under the same conditions.

Claim 5

A method of producing a reprint according to claim 3, wherein said first set of data includes density data relative to said image formed on said original-image film and said second set of data includes density data relative to said image formed on said printed sheet.

Claim 6

A method of producing a reprint according to claim 4, wherein said exposure control is performed by moving each filter of a light control filter device into and out of an optical path extending between said image on said original-image film and a light source for illuminating said image and at the same time opening and closing said optical path by means of a shutter.

Claim 7

A method of producing a reprint according to claim 5, wherein said step (c) is performed by detecting light emitted from said light source and transmitted through said original-image film and said step (d) is performed by detecting light emitted from said light source and reflected from said printed sheet of photographic paper.

Claim 8

A method of producing a reprint according to claim 1, wherein said arithmetic operations upon said amount of exposure in said step (a) are performed on the basis of the following equation: log E.sub.i =log E.sub.Ni +C.sub.j (D.sub.Nj -D.sub.NNj)+γ.sub.j (D.sub.pj -D.sub.Npj)+KD·ID+Ki·Ii where E: amount of exposure relative to said original-image film, E N : amount of exposure relative to a normal original-image film, C: correction factor based on the density of said original-image film, D N : LATD of said original-image film, D NN : LATD of said original-image film, γ: correction factor based on the density of said original-image film, D P : density of said original-image film, D Np : density of said normal photographic paper, KD: number of steps of selected density keys ( . . . -2, -1, 0, +1,+2, . . . ), Ki: number of steps of selected color keys ( . . . -2, -1, 0, +1, +2, . . . ), ID: amount of correction per step of said density key, Ii: amount of correction per step of said color key, i: one of red, green and blue, and j: one of Y, M and C.

Claim 9

A printing apparatus for producing a reprint, comprising: a first data detecting means for detecting a set of data (a first set of data) relative to an image on an original-image film; a second data detecting means for detecting a set of data (a second set of data) relative to an image printed on a printed sheet of photographic paper from said original-image film; input means for inputting therethrough a set of correction data (a third set of data) relative to desired corrections to be made with respect to the color characteristics of said image on said printed sheet; arithmetic means for, on the basis of said first, second and third sets of data, performing arithmetic operations upon the amount of exposure required for printing said image on photographic paper from an original-image film; and exposure control means for performing exposure control on the basis of the results of said arithmetic operations to finish the color characteristics of said image to be reprinted on said photographic paper so that said color characteristics includes said desired corrections applied to the color characteristics of said image printed on said printed sheet.

Claim 10

A printing apparatus for producing a reprint, comprising: a first data detecting means for detecting a set of data (a first set of data) relative to an image on an original-image film; a second data detecting means for detecting a set of data (a second set of data) relative to an image printed on a printed sheet of photographic paper from said original-image film; input means for inputting therethrough a set of correction data (a third set of data) relative to desired corrections to be made with respect to the color characteristics of said image on said printed sheet; arithmetic means for, on the basis of said first, second and third sets of data, performing arithmetic operations upon the amount of exposure required for printing said image on photographic paper from an original-image film; and exposure control means for performing exposure control on the basis of the results of said arithmetic operations to finish the color characteristics of said image to be reprinted on said photographic paper so that said color characteristics includes said desired corrections applied to the color characteristics of said image printed on said printed sheet.

Claim 11

A printing apparatus for producing a reprint according to claim 8 further comprising a light source for illuminating said original-image film and said printed sheet of photographic paper in order to obtain said first and second set of data.

Claim 12

A printing apparatus for producing a reprint according to claim 9 further comprising a carrier having a through-hole equivalent in size to one image frame of said original-image film for carrying said original-image film to enable said one image frame to be located at a position corresponding to said through-hole.

Claim 13

A printing apparatus for producing a reprint according to claim 10, wherein said carrier has a photographic-paper holding portion in which said printed sheet is located.

Claim 14

A printing apparatus for producing a reprint according to claim 11, wherein said photographic-paper holding portion has an photographic-paper exposing aperture formed adjacent to said through-hole for allowing a printed surface of said printed sheet to be exposed to said light source.

Claim 15

A printing apparatus for producing a reprint according to claim 9, wherein said exposure control means is arranged to perform said exposure control by causing each filter of a light control filter device to move into and out of an exposure optical path extending between said light source and said photographic paper and at the same time opening and closing said exposure optical path by means of a shutter.

Claim 16

A printing apparatus for producing a reprint according to claim 13 wherein said first data detecting means includes density sensor means for detecting density data relative to said image on said original-image film on the basis of light transmitted through said original-image film.

Claim 17

A printing apparatus for producing a reprint according to claim 14, wherein said second data detecting means includes density sensor means for detecting density data relative to said image formed on said printed sheet of photographic paper on the basis of light reflected from said printed sheet.

Claim 18

A printing apparatus for producing a reprint according to claim 15 further comprising a mirror for reflecting light emitted from said light source to cause it to illuminate said printed sheet of photographic paper.

Claim 19

A printing apparatus for producing a reprint, comprising: a carrier for carrying an original-image film; a light source for projecting an image from said original-image film carried by said carrier onto photographic paper; film-image density detecting means for detecting the density (a first density) of an image on said original-image film; paper-image density detecting means for detecting the density (a second density) of an image printed on said printed sheet from said original-image film; inputting means arranged to input therethrough a correction density (a third correction density) required for making desired corrections with respect to the density of said image on said printed sheet; arithmetic means for, on the basis of said first, second and third densities, performing arithmetic operations upon the amount of exposure required for printing said image on said photographic paper from said original-image film; and exposure control means for performing exposure control on the basis of the results of said arithmetic operations to finish the density of said image to be reprinted on said photographic paper so that said density includes said desired corrections applied to said density of said image printed on said printed sheet.

Claim 20

A printing apparatus for producing a reprint, comprising: a carrier for carrying an original-image film; a light source for projecting an image from said original-image film carried by said carrier onto photographic paper; film-image density detecting means for detecting the density (a first density) of an image on said original-image film; paper-image density detecting means for detecting the density (a second density) of an image printed on said printed sheet from said original-image film; inputting means arranged to input therethrough a correction density (a third correction density) required for making desired corrections with respect to the density of said image on said printed sheet; arithmetic means for, on the basis of said first, second and third densities, performing arithmetic operations upon the amount of exposure required for printing said image on said photographic paper from said original-image film; and exposure control means for performing exposure control on the basis of the results of said arithmetic operations to finish the density of said image to be reprinted on said photographic paper so that said density includes said desired corrections applied to said density of said image printed on said printed sheet.

Claim 21

A printing apparatus for producing a reprint according to claim 17, wherein said carrier has a photographic-paper holding portion in which said printed sheet of photographic paper is located.

Claim 22

A printing apparatus for producing a reprint according to claim 18, wherein said carrier has a through-hole equivalent in size to one image frame of said original-image film and a photographic-paper exposing aperture formed adjacent to said through-hole for allowing a printed surface of said printed sheet to be exposed to said light source.

Claim 23

A printing apparatus for producing a reprint according to claim 19, wherein said photographic-paper exposing aperture is provided with a gray bottom surface.