Abstract:
A method for automatically compensating for scanner metamerism errors associated with scanning input images using a digital color image scanner, wherein the input images can be on a variety of different input media having colorants with different spectral characteristics, comprising scanning an input image on a digital color image scanner to produce a scanned image; determining one or more estimated color balance error values in a color balance parameter space by analyzing the scanned image using a color balance analysis algorithm; assigning an input medium from a set of possible input media for the scanned input image in response to the estimated color balance error values; selecting a scanner metamerism correction color transform associated with the assigned input medium; and applying the selected scanner metamerism correction color transform to the scanned image to produce a corrected image compensated for scanner metamerism errors.
Abstract:
A recording element printing and treating system and method are provided. The system includes a printhead for dispensing a liquid comprising a carrier onto a recording element. A carrier removal station positioned downstream from the printhead removes a predetermined percentage of carrier present in the recording element. A converting station positioned downstream from the carrier removal station increases a durability characteristic of the recording element. In one embodiment, printing, carrier removal, and converting are accomplished in a single unit. In an alternative embodiment, printing is accomplished in a stand alone unit while carrier removal and converting are accomplished in a second stand alone unit. In this alternative embodiment, transfer of the recording element can be accomplished automatically using a mechanical device or manually by a system user.
Abstract:
A method of selecting inks within an inkjet ink set for color printing includes: a) providing at least two color inks, each ink having a carrier and a pigment; b) printing the above inks onto a receiver using test images consisting of single color patches of a Dmax density (100% dot coverage); c) measuring the gloss level of each patch at a predefined specular angle; d) calculating the Relative Gloss Variability (RGV) values of the ink set based on the definition in Equation A; and e) selecting inks for the color set such that the Relative Gloss Variability (RGV) among inks is less than 10% when 60° is used as the specular angle: RGV ( % ) = ∑ I = 1 N | ( Gloss ( Imaged Area ) I - AG ) | AG / N Equation ( A ) Where AG = ∑ I = 1 N Gloss ( Imaged Area ) I N I is a variable which identifies a certain color patch used in the evaluation, N is the total number of color patches used in the evaluation.
Abstract:
An ink jet printing process for improving the ozone stability an ink jet image comprising: a) providing an ink jet recording element comprising a support having thereon a porous image-receiving layer having interconnecting voids; and b) applying droplets of a liquid ink on the image-receiving layer in an image-wise manner, the ink comprising water, humectant and a metallized, phthalocyanine dye, the metallized, phthalocyanine dye comprising the formula: MPc(SO3X)a(SO2NRR′)b.
Abstract:
Photographic elements and diffusion transfer assemblages are described which contain a novel mordant comprising a polymeric backbone having appended thereto nitrogen-coordinating ligands having the formula: ##STR1## wherein D.sup.1, D.sup.2, D.sup.3 each independently represents the atoms necessary to complete an aromatic heterocyclic nucleus having at least one ring of 5 to 7 atoms.In a preferred embodiment, the mordant comprises recurring units having the formula: ##STR2## wherein: R.sup.1 and R.sup.2 each independently represents hydrogen or an alkyl or substituted alkyl group having from 1 to about 6 carbon atoms;Link represents a bivalent linking group; andLIG represents a nitrogen-coordinating ligand as described above.
Abstract:
A process of obtaining highly stable color images comprises use of an element which has a support having thereon at least one silver halide emulsion layer having associated therewith an essentially colorless, immobile, ligand-releasing compound of the structure LIG-X. In this structure, LIG is a ligand which is capable of complexing with metal ions (e.g. ferrous ions) to form a metal complex dye, and X is a group which, as a function of silver halide development, is cleaved from LIG. A color image is formed by developing the described element after imagewise exposure with a developing agent to imagewise cleave the bond between the LIG and X, and treating the developed element with metal ions (e.g. ferrous ions) to form a metal complex dye image.
Abstract:
Nondiffusible compounds capable of releasing at least one diffusible cyan dye moiety having the formula: ##STR1## wherein: (a) Y represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) CAR represents a ballasted carrier moiety capable of releasing the diffusible cyan dye moiety as a function of development of a silver halide emulsion layer under alkaline conditions;(c) R represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof, or CAR which is linked to the dye moiety through an oxygen atom thereon; and(d) n is 0, 1 or 2 with the proviso that when n is 0, then R is CAR which is linked to the dye moiety through an oxygen atom thereon.
Abstract:
Coordination complexes of a polyvalent metal ion and a nondiffusible compound capable of releasing at least one diffusible cyan dye moiety having the formula: ##STR1## wherein: (a) Y represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic fused ring;(b) CAR represents a ballasted carrier moiety capable of releasing the diffusible cyan dye moiety as a function of development of a silver halide emulsion layer under alkaline conditions;(c) R represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof, or CAR which is linked to the dye moiety through an oxygen atom thereon; and(d) n is 0, 1 or 2 with the proviso that when n is 0, then R is CAR which is linked to the dye moiety through an oxygen atom thereon.
Abstract:
Nondiffusible compounds are described having a releasable 6-arylazo-3-pyridinol magenta dye moiety or precursor thereof having the formula ##STR1## wherein: (a) R represents hydroxy or amino;(b) R.sup.1 represents hydrogen, a hydrolyzable moiety or CAR;(c) G represents carboxy; a hydrolyzable ester or a sulfamoyl group;(d) CAR represents a ballasted carrier moiety capable of releasing the diffusible 6-arylazo-3-pyridinol dye moiety or precursor thereof under alkaline conditions; and(e) n is 0, 1 or 2, with the proviso that when n is 0, then R.sup.1 is CAR; and wherein the phenyl ring is not substituted with a nitro group.These magenta dye-releasing compounds are used in photographic elements and diffusion transfer assemblages. The magenta dye moiety or precursor thereof is released as a function of development of a silver halide emulsion. The dye moiety then diffuses to an image-receiving layer where it forms a highly stable, metal-complexed dye transfer image.