Abstract: Methods and systems for rendering a watermark, can involve creating a digital watermark by applying grayscale inversion and contrast reduction to a document, resulting in a visually distinguishable pattern and rendering a digital watermark on the document in a manner that allows verification at different viewing angles. The digital watermark can be created using a digital swatch sheet of multiple gray values. The document can be viewed varying angles to verify the validity of the document based on the visibility and characteristics of the digital watermark. The digital watermark may be modified on predetermined parameters to facilitate enhanced security against fraud.

Abstract: A security apparatus, method and system for rendering a security mark, can involve providing a security mark with a metameric pair of infrared inks. A spectral reflectance of two metameric inks among the metameric pair of inks differs for CMYK for K in infrared. A first metameric ink among the metameric pair of infrared inks can be configured to include more K than a second metameric ink among the metameric pair of infrared inks, wherein when a document containing the security mark is scanned, and the number of K pixels in the first metameric ink is filtered to destroy the security mark when viewed through an infrared camera.

Abstract: Methods and systems for creating a gloss effect, can involve adjusting a color selected with a first RGB color value for a first pattern ink among a group of pattern inks to appear lighter and selecting a common geometric pattern for the group of pattern inks including the first pattern ink and a second pattern ink. A feature can be written with an object with a second RGB color value and a geometric pattern can be written opaquely on top of the selected common geometric pattern. The feature can be erased within the object with a third RGB color value. The feature can be then written with a fourth RGB color value. The geometric pattern can be then written opaquely on top of the feature in the color adjusted selected for the first pattern ink to create a gloss effect with the geometric pattern opaquely on top of the feature in the color adjusted selected for the first pattern ink which displays the feature.

Abstract: Methods, systems and security devices for rendering digital invisible ink, can involve representing an invisible item in a single color that is not discernable from white by a human eye, embedding the invisible item into white space of a digital document, and converting the invisible item into a visible item using a transform table that defines how to convert the single color of the invisible item so that the invisible item after a conversion to the visible item is discernable by the human eye.

Abstract: A method, system and apparatus for rendering a gloss effect on a recording medium, can involve rendering a foreground pattern using a first ink composition comprising infrared absorbing colors, wherein said first ink is lightened with lightening parameters by the addition of paper white holes and rendering a background pattern using a second ink composition comprising a process or spot color, wherein said second ink is darkened with darkening parameters by the addition of infrared absorbing colors that have different amounts of infrared absorbing colors than that of the first ink composition. The lightening parameters and the darkening parameters are adjustable to ensure that the first and second inks appear approximately the same at printed sizes. Anisotropic properties can be introduced to the first and second inks, causing non-uniformity in their reflection of light in different directions when viewed under a light source, thereby creating a gloss effect renderable on a recording medium.

Abstract: A method, system and printing device for rendering digital color changing inks, can involve configuring a digital ink to appear as one color on a digital screen at one angle and as a different color at a different angle, and rendering the digital ink in a digital document. In an embodiment, a black geometric shape can be created, which can turn off RGB pixels. Single-color lines can be then added to the black geometric shape. The geometric shape can be viewed at different angles to determine one or more working patches. One or more working patches can be then added to the digital document. New Digital color changing inks can be created by taking advantage of the RGB output verses angle curves. The digital inks can appear as one color on a digital screen at one angle and as a different color at a different angle.

Abstract: Methods and systems for defining characters, can involve selectively removing pixels from one or more characters and rendering a character with a user space equivalent to a device space. Multiple abutting non-line pixels can be removed among the pixels from the character(s). Furthermore, the character(s) including the multiple abutting non-line pixels as expected for the character(s) can be created prior to prior to selectively removing the pixels from the character(s). This approach can avoid partially marked pixels by setting user space equal to device space and then selectively removing pixels when printing microtext. Selective pixel removal allows for more white space and better recognition of characters such as, for example, “8” and “E”.

Abstract: A security apparatus, method and system for rendering a security mark, can involve providing a security mark with a metameric pair of infrared inks. A spectral reflectance of two metameric inks among the metameric pair of inks differs for CMYK for K in infrared. A first metameric ink among the metameric pair of infrared inks can be configured to include more K than a second metameric ink among the metameric pair of infrared inks, wherein when a document containing the security mark is scanned, and the number of K pixels in the first metameric ink is filtered to destroy the security mark when viewed through an infrared camera.

Abstract: A method and system for rendering a watermark with near perfect infrared colors can involve providing an infrared pattern ink having a color with a lower spectral reflectance in an infrared spectrum, replacing the color having the lower spectral reflectance with a replacement color constituting a combination of colors having a higher spectral reflectance in the infrared spectrum, them matching in a visible spectrum, the replacement color with the color having the lower spectral reflectance in the infrared spectrum, and rendering a watermark as a metameric color pair including the infrared pattern ink and replacement color. Alternatively, a watermark may be created by defining a first color pattern having a CMYK value derived from a particular LAB value with a lower toner stack and a higher reflectance in an infrared spectrum as compared to a second color pattern having a second CMYK value derived from the same LAB value.

Abstract: Methods and systems for rendering a print job can involve saving an initial characteristic of a print job during a setup of the print job, comparing a current characteristic of the print job to the initial characteristic, and applying a transformation to compensate for a mismatch between the initial characteristic and the current characteristic prior to rendering of the print job. The print job is rendered after applying the transformation. The transformation may be performed in a vector space prior to marking of the print job in a device space.

Abstract: Methods and systems for rendering a print job can involve saving an initial characteristic of a print job during a setup of the print job, comparing a current characteristic of the print job to the initial characteristic, and applying a transformation to compensate for a mismatch between the initial characteristic and the current characteristic prior to rendering of the print job. The print job is rendered after applying the transformation. The transformation may be performed in a vector space prior to marking of the print job in a device space.

Abstract: Methods and systems for generating pre-trapped text, can involve providing a color comprising two or more inks, writing a character of microtext in a normal position using one or more of the inks, writing the character n more times in the color at new positions, and then altering the color and writing the character in microtext in the normal position. The resulting microtext can be rendered on a recording medium with a printing system.

Abstract: Methods and systems for rendering a gloss effect can involve determining among a first color and a second color, which of the first color or the second color is mixed with a black colorant that is furthest from a rich black colorant; selecting a first color with the black colorant; selecting a second color to be fully black and a least rich black colorant; creating an object with the first color and entering data within the object opaquely with the second color; and rendering a document with the object including the data with the object, wherein the object with the data can exhibit a gloss effect based on the first color and the second color.

Abstract: A security apparatus, method and system for rendering a security mark, can involve providing a security mark with a metameric pair of infrared inks. A spectral reflectance of two metameric inks among the metameric pair of inks differs for CMYK for K in infrared. A first metameric ink among the metameric pair of infrared inks can be configured to include more K than a second metameric ink among the metameric pair of infrared inks, wherein when a document containing the security mark is scanned, and the number of K pixels in the first metameric ink is filtered to destroy the security mark when viewed through an infrared camera.

Abstract: Methods, systems and security devices for rendering digital invisible ink, can involve representing an invisible item in a single color that is not discernable from white by a human eye, embedding the invisible item into white space of a digital document, and converting the invisible item into a visible item using a transform table that defines how to convert the single color of the invisible item so that the invisible item after a conversion to the visible item is discernable by the human eye.

Abstract: A multispectral watermark and method for generating the multispectral watermark. A color pattern can be provided, which appears a single color/pattern under a first lighting condition. A watermark can be created based on the color pattern and under a second lighting condition comprising ultraviolet light, while the watermark is viewable with an infrared camera in an infrared spectrum. The watermark can be configured as a multispectral watermark with a metameric pair of inks with one ink of the metameric pair of inks using more CMYK toners that reflect in the infrared spectrum as compared to the other ink among the metameric pair of inks while simultaneously allowing more of the ultraviolet light or less of the ultraviolet light to reach a fluorescing media upon which the multispectral watermark is rendered.

Abstract: A method, apparatus and system for rendering a security mark, can involve providing two variable layers of data text for a security mark including a first variable layer and a second variable layer, and applying the security mark to a recording medium using the two variable layers to create a third variable layer of the security mark. The second variable layer can be applied out of phase or orthogonally from the first variable layer at the same frequency, which can form the third variable layer with data text that is decodable. The third variable layer with the data text can be decodable with a decoding screen. In addition, the first, second, and third variable layers can share the same area. The security mark may comprise a correlation mark.

Abstract: A security apparatus and a method for rendering a security mark can involve creating a security mark that includes a correlation mark having a correlation effect and comprising black pixels and white pixels, and subjecting the security mark to a filter that can removes at least some of the black pixels or the white pixels so that the correlation effect no longer functions and the security mark is not visible when rendered on a recording medium.

Abstract: A multispectral watermark and method for generating the multispectral watermark. A color pattern can be provided, which appears a single color/pattern under a first lighting condition. A watermark can be created based on the color pattern and under a second lighting condition comprising ultraviolet light, while the watermark is viewable with an infrared camera in an infrared spectrum. The watermark can be configured as a multispectral watermark with a metameric pair of inks with one ink of the metameric pair of inks using more CMYK toners that reflect in the infrared spectrum as compared to the other ink among the metameric pair of inks while simultaneously allowing more of the ultraviolet light or less of the ultraviolet light to reach a fluorescing media upon which the multispectral watermark is rendered.

Abstract: Methods and system for creating an infrared effect that can survives copying, can involve providing a metameric pair of pattern inks, wherein a first pattern ink reflects higher in an infrared spectrum as compared to a second pattern ink among the metameric pair of pattern inks, wherein the second pattern ink is less reflective than the first pattern ink. For the second pattern ink that is less reflective than the first pattern ink, a pattern can be created for the second pattern ink that is larger and less scattered than an existing design for a pattern ink. A color of media can be used as a common color for the metameric pair of patterns and inks to create an infrared effect from the metameric pair of pattern inks that survives copying on the media.