[{"data":1,"prerenderedAt":346},["ShallowReactive",2],{"project-23661808":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":29,"sentiment":30,"stance_mix":31,"scored_comments":36,"aspects":37,"strip":43,"post_text":45,"what":46,"said":56,"maker_in_thread":130,"shape":136,"grid":140,"attempts":307,"same_week":308,"maker_shows":259,"maker_hidden":338,"reader_version":339,"card":340},"23661808","Rainbow","an attempt to display colour on a B&W monitor","title","Show HN: Rainbow – an attempt to display colour on a B&W monitor","https:\u002F\u002Fwww.anfractuosity.com\u002Fprojects\u002Frainbow\u002F","anfractuosity.com","anfractuosity",1593265398,2020,389,58,91,3028,4,"legend","hardware","display hacks","other",[24,25,26,27,28],"colour display","black and white monitor","bayer filter","acetate filter","lcd colour","curious",-0.059,{"positive":32,"neutral":33,"mixed":34,"critical":35},2,12,0,3,17,{"idea":38,"execution":40,"performance":41,"design":42},{"positive":39,"critical":39},1,{"positive":34,"critical":39},{"positive":34,"critical":39},{"positive":39,"critical":34},[44,34,35,34,39,35,35,34,35,34,34,35,34,35,34,34,34,34,34,34,34,34,34,34,34,34,35,34,34,34,44,35,35,35,34,34,34,39,34,39],5,null,{"problem":47,"audience":45,"pricing":45,"motivation":45,"time_to_build":45,"stack":53,"openness":54,"stage":55,"team_size":54},{"value":48,"source":49,"evidence":50},"Displaying colour on a black and white monitor","maker",[51],{"id":52},"post",[],"unknown","prototype",{"praise":57,"objections":70,"requests":82,"questions":89,"alternatives":107},[58],{"value":59,"source":60,"evidence":61},"Beautiful, ethereal art-like effect","commenter",[62,66],{"id":63,"by":64,"text":65},"23662293","Jetroid","Very neat, the outcome probably isn't what you were hoping for, but it has a beautiful and ethereal quality to it. It's like an art piece. From the photos and video, only a small…",{"id":67,"by":68,"text":69},"23662885","max_likelihood","The gentle gradients and transformations from black & white to color are charming. It made me think of the scene in Wizard of Oz where Dorothy steps into Technicolor.",[71,75],{"value":72,"source":60,"evidence":73},"Colour only shows in a small region of the screen",[74],{"id":63,"by":64,"text":65},{"value":76,"source":60,"evidence":77},"Filter alignment is impractical; Tektronix NuColor used a different approach",[78],{"id":79,"by":80,"text":81},"23662165","myself248","Tektronix did it with a totally wild set of LCD color filter shutters over the whole face of the CRT, and then sequential color fields. It meant you got the whole spatial…",[83],{"value":84,"source":49,"evidence":85},"Better colour spread with an adhesive acetate filter",[86],{"id":87,"by":11,"text":88},"23662366","Yeah I would like to improve the effect. I think the main colour region seems to stay the same. I'm wondering if I can get acetate that's ever so slightly adhesive, so it sticks…",[90,100],{"value":91,"source":60,"evidence":92},"How does autochrome work and how is this related",[93,97],{"id":94,"by":95,"text":96},"23662700","Exuma","Can someone explains how this works? I have frustratingly been googling for 30 minutes now trying to learn how autochrome works. Being tech oriented it's so frustrating when…",{"id":98,"by":64,"text":99},"23662821","The trick is because the shade of grey DOES have chroma. You can't just apply any autochrome panel to the image (unlike what the OP is trying to do with Rainbow), instead, the…",{"value":101,"source":60,"evidence":102},"Is a home printer sufficient for the pattern",[103],{"id":104,"by":105,"text":106},"23662123","elcomet","That's awesome! I guess diffraction of light between the original pixel and the filter is also a reason for the low quality. It would be nice if the author explained a bit more…",[108,119,123],{"value":109,"source":60,"evidence":110},"JVC LCCS colour shutter display",[111,115],{"id":112,"by":113,"text":114},"23662339","tootie","JVC built a working model with that approach. There's a neat breakdown of the tech on this YT channel: https:\u002F\u002Fyoutu.be\u002Fz-q8ehzHeQQ",{"id":116,"by":117,"text":118},"23663609","talideon","I'm reminded a bit of the JVC TM-L450TU LCCS (http:\u002F\u002Fwww.earlytelevision.org\u002Fjvc_tm-l450tu.html), which used some clever tricks to make a fundamentally B&W LCD show colour.",{"value":120,"source":60,"evidence":121},"Tektronix NuColor",[122],{"id":79,"by":80,"text":81},{"value":124,"source":60,"evidence":125},"Autochrome colour photography",[126],{"id":127,"by":128,"text":129},"23662770","CrazyStat","Autochrome was an early technique for color photography. Wikipedia has a pretty good explanation [1]. The starch grains were randomly scattered on one side of the photographic…",{"comments":32,"answered":32,"key":131},[132,133],{"id":87,"text":88},{"id":134,"text":135},"23662148","The size of the acetate is around ~A2 size, I got the three acetate sheets printed by printer service for around £35.…",{"commenters":137,"max_depth":138,"maker_replies":32,"first_comment_mins":44,"lifespan_hours":139},49,6,29,[141,143,145,148,152,156,159,161,163,166,168,171,172,173,176,179,182,183,186,188,191,194,197,200,203,205,208,211,214,216,219,222,225,228,231,234,237,240,242,245,248,252,255,258,261,265,270,272,273,274,278,281,284,288,291,296,299,304],[63,34,44,142,64,34],"project\u002Fpositive\u002Fidea",[87,34,34,144,11,39],"maker\u002Fneutral\u002Fexecution",[146,34,35,144,147,34],"23662899","pbhjpbhj",[149,34,35,150,151,34],"23666454","project\u002Fneutral\u002Fperformance","anon_cow1111",[153,34,34,154,155,34],"23662687","other\u002Fneutral\u002Fnone","softwarejosh",[157,34,34,154,158,34],"23663845","com2kid",[79,39,39,160,80,34],"project\u002Fcritical\u002Fexecution",[112,39,35,162,113,34],"project\u002Fneutral\u002Fidea",[164,39,34,154,165,34],"23662583","jeffbee",[167,39,35,162,165,34],"23662435",[169,39,34,154,170,34],"23667078","djmips",[94,32,35,162,95,34],[127,32,34,154,128,34],[174,32,34,154,175,34],"23662809","amarshall",[177,32,34,154,178,34],"23663436","jacobush",[180,32,35,162,181,34],"23662778","jessewmc",[98,32,34,154,64,34],[184,32,34,185,178,34],"23663414","commenter\u002Fneutral\u002Fnone",[187,32,34,185,128,34],"23665970",[189,32,35,162,190,34],"23662864","blattimwind",[192,32,34,185,193,34],"23664274","neuralRiot",[195,35,34,154,196,34],"23661920","Normille",[198,35,34,154,199,34],"23662061","lovelyviking",[201,35,34,154,202,34],"23663345","airstrike",[204,35,34,154,105,34],"23662099",[206,35,34,154,207,34],"23662204","tyingq",[209,35,34,154,210,34],"23663433","jjeaff",[212,35,34,154,213,34],"23664012","sukilot",[215,35,34,154,210,34],"23663420",[217,35,34,154,218,34],"23668958","Jyaif",[220,18,34,154,221,34],"23662521","fhars",[223,18,34,154,224,34],"23662611","yread",[226,18,34,154,227,34],"23664382","stordoff",[229,18,34,154,230,34],"23666347","sundarurfriend",[232,18,34,154,233,34],"23664499","mleonhard",[235,18,34,154,236,34],"23665361","dr_kiszonka",[238,18,34,154,239,34],"23666206","rubyron",[241,18,34,154,236,34],"23671071",[243,44,35,162,244,34],"23662312","nerdbaggy",[246,138,34,154,247,34],"23662464","ecpottinger",[249,250,34,154,251,34],"23663914",7,"dbbbbbbbb",[253,250,34,154,254,34],"23664988","avhon1",[256,250,34,154,257,34],"23666695","artsyca",[67,259,44,260,68,34],8,"project\u002Fpositive\u002Fdesign",[262,263,34,154,264,34],"23661828",9,"fortran77",[266,267,35,268,269,34],"23666919",10,"project\u002Fneutral\u002Fexecution","jhiesey",[116,271,35,162,117,34],11,[104,33,35,144,105,34],[134,33,34,144,11,39],[275,276,34,154,277,34],"23663538",13,"EvanAnderson",[279,276,34,154,280,34],"23663569","deberon",[282,276,34,154,283,34],"23665863","dag11",[285,286,34,154,287,34],"23664935",14,"DonHopkins",[289,290,35,162,207,34],"23661980",15,[292,293,39,294,295,34],"23664145",16,"project\u002Fcritical\u002Fperformance","blt",[297,36,34,154,298,34],"23663027","neoyagami",[300,301,39,302,303,34],"23663064",18,"project\u002Fcritical\u002Fidea","behnamoh",[305,301,34,185,306,34],"23663669","markozivanovic",[],[309,314,319,324,329,334],{"id":310,"name":311,"points":312,"category":313},"23658721","unim.press",638,"productivity",{"id":315,"name":316,"points":317,"category":318},"23669650","Paper HN",627,"consumer_social",{"id":320,"name":321,"points":322,"category":323},"23652753","HiFiC",281,"ai",{"id":325,"name":326,"points":327,"category":328},"23643096","Aviary.sh",276,"infrastructure",{"id":330,"name":331,"points":332,"category":333},"23700486","Coding Career Handbook",245,"learning_science",{"id":335,"name":336,"points":337,"category":313},"23668507","Promnesia",234,false,"v2",{"id":341,"name":5,"line":6,"ai":338,"cat":20,"year":13,"points":14,"comments":15,"rec":29,"s":342,"top":18,"kw":343,"maker":11,"domain":10,"tier":19,"attempts":34,"strip":344,"url":9,"mix":345,"praise":59,"objection":72,"sub":21},23661808,-0.06,[24,25,26,27,28],"5030133030030300000000000030005333000101",[32,33,34,35],1794036592814]