# US 2014/0153818 A1 · Method for producing an iridescent image, image obtained and device including same, associated program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153818 A1 - Document ID: US20140153818A1 - Status: Published application - Kind: A1 - Application number: 14/124,745 - Filed: 2012-06-08 - Published: 2014-06-05 - Earliest claimed: 2011-06-08 - Assignees: Media Relief - Inventors: Christophe Lanfranchi - Web page: https://patentgrep.com/patent/US20140153818A1 ## CPC - G06T 11/10: Texturing; Colouring; Generation of textures or colours (retouching, inpainting or scratch removal G06T5/77) - G02B 30/27: involving lenticular arrays - G02B 30/30: involving parallax barriers - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract The invention relates to a method for producing a series of modified images intended for forming an iridescent image, using at least one reference image, characterised by including steps of creating a colour pallet (P); creating a series of at least two modified reference images (IRMO, IRMI, IRM2, IRMn, etc.), in which the colours of said at least one reference image (IR) are replaced with the colours of the pallet by applying, before or between each new modified reference image (IRM), a circular shift to the colours of the pallet. The invention also relates to the inter-laced, iridescent, 3-D images obtained using such a method, as well as to a device including such an interlaced image and an associated program. ## Claims ### Claim 1 Method for producing an iridescent image from at least one reference image comprising a production of a series of modified images intended to form said iridescent image from at least one reference image, characterised in that it comprises steps of creating a palette of colours (P), creating a series of at least two modified reference images (IRM0, IRM1, IRM2, IRMn . . . ), in which the colours of said at least one reference image (IR) are replaced by colours of the palette by effecting, before or between each new modified reference image (IRM), a circular shift of the colours of the palette, and creating said interlaced image from said modified reference images, creating an iridescent image in which the series of at least two modified reference images is put in relationship with an optical selector enabling an observer to perceive with his two eyes different images in said series. ### Claim 2 (depends on 1) Method according to claim 1, characterised in that it also comprises a step of applying a fuzziness to all or part of said at least one reference image, before the step of creating the modified reference images (IRM). ### Claim 3 (depends on 1) Method according to claim 1, characterised in that the step of creating said modified reference images (IRM) is performed by means of at least one mask covering at least part of the reference image. ### Claim 4 (depends on 1) Method according to claim 1, characterised in that the colours of the palette of colours represent either a single layer of colour, in bitmap or grey level, or two layers of colours the lightest of which has a constant value over the whole of said palette of colours, or three red green blue layers, or four cyan magenta yellow black layers. ### Claim 5 (depends on 1) Method according to claim 1, characterised in that the series of modified reference images is configured so as to be observed through a non-autostereoscopic optical selector preferably selected from the group comprising a stereoscope or stereoscopic spectacles selected from the group comprising spectacles using coloured or polarising filters, LCD obturation spectacles or prismatic spectacles. ### Claim 6 (depends on 1) Method according to claim 1, characterised in that it comprises a step of creating at least two reference images from a series of preference images selected from the group comprising a multiscopic series, an animation, and the step of creating a series of modified reference images is then performed on each of said at least two reference images in order to create for each of them at least one modified reference image. ### Claim 7 (depends on 1) Method according to claim 1, characterised in that it also comprises a step of putting the interlaced image in relationship with an autostereoscopic optical selector in order to obtain an iridescent image, the autostereoscopic selector preferably being selected from the group comprising an array of cylindrical lenses, an array of spherical lenses, a parallax barrier or an autostereoscopic screen. ### Claim 8 Interlaced image derived from a series of at least two modified reference images (IRM0, IRM1, IRM2, IRMn . . . ) obtained from at least one reference image, the colours of which have been replaced by the colours of a palette of colours by performing, before or between each new modified reference image, a circular shift of the colours of the palette, said interlaced image being able to form an iridescent image in which the series of at least two modified reference images is put in relationship with an optical selector enabling an observer to perceive with his two eyes the different images in said series. ### Claim 9 (depends on 1, 8) Iridescent image comprising an interlaced image according to claim 8 or obtained by the method according to claim 1, put in relationship with an autostereoscopic optical selector preferably selected from the group comprising an array of linear lenses, an array of spherical lenses or a parallax barrier. ### Claim 10 (depends on 9) Iridescent image according to claim 9, characterised in that it is at least partially in 3D, ### Claim 11 3D iridescent image derived from a series of modified reference images obtained from reference images constituting a stereoscopic pair, the colours of which have been replaced by the colours of a palette of colours by performing, before or between each new modified reference image, a circular shift of the colours of the palette, an iridescent image in which the series of modified reference images is put in relationship with an optical selector enabling an observer to perceive with his two eyes the different images in said series. ### Claim 12 (depends on 8) Anti-counterfeit security image comprising an interlaced image according to claim 8. ### Claim 13 (depends on 1, 8) Device comprising an interlaced image according to claim 8 or obtained by the method according to claim 1, put in relationship with an autostereoscopic optical selector preferably selected from the group comprising an array of linear lenses, an array of spherical lenses or a parallax barrier, said device being selected from the group comprising a bank or telephone card, a shop window, a package, a decoration, a garment or footwear marking, a ruler, a key fob, a flask, a bottle, a plate, a glass, a vase, a shade, a box, a block of etched glass, a communication element such as a business card, a press dossier, a booklet, a sign, an industrial marking, a publishing product such as poster, a postcard, a greetings card, a bookmark, a file cover, a book, a notebook or copy book, an item of jewellery such a bracelet, a pendant, a broach, the dial of a watch or of a clock, a tile or a glass pane. ### Claim 14 (depends on 1) Computer program product able to be loaded into the memory of a control unit such as a computer, comprising program code means recorded on a medium that can be read by a computer, for implementing the steps of the method according to one of claim 1 when said program functions on a computer. ### Claim 15 (depends on 14) Computer program product according to claim 14, characterised in that it also comprises program code means recorded on a medium that can be read by a computer, for implementing a 3D image creation when said program functions on a computer. ### Claim 16 (depends on 1) Anti-counterfeit security image comprising an interlaced image obtained by the method according to claim 1. ### Claim 17 (depends on 9) Anti-counterfeit security image comprising an iridescent image according to claim 9. ### Claim 19 (depends on 7) Anti-counterfeit security image comprising an iridescent image obtained by the method according to claim 7. ### Claim 20 (depends on 11) Anti-counterfeit security image comprising a 3D image according to claim 11.