WhenJeffSparkmandrawshiscartoonsuperheroeswithcoloredpencilsheoftenhastoaskotherpeopletotellhimwhatcolorhismaskedmenturnedouttobebecausehe'scolor-blind.Nowanewsmartphoneapplication(app)canhelphimfigureoutwhatcolorshe'susingandhowthepicturelookstomosteveryoneelse.

TheDanKamappavailableforiPhoneandAndroidfor$2.99isanapplicationthatturnsthevaguecolorsthatonepercentofthepopulationwithcolor-blindnessseesintothe"true"colorsaseveryoneelseseesthem.InAmericaanestimated32millioncolor-blindAmericans—95%aremales—cansoonhavetheirlifeimproved.

“DanKamtakesthestreamofdatacominginthroughthephone'scameraandchangesthecolorsslightlysotheyfallwithintherangethatpeoplewhoarecolor-blindsee”developerDanKaminskytoldCNET.Hecameupwiththeideaafterwatchingthe2009filmStarTrekwithacolor-blindfriend.

Itwasthenthathegottoknowmoreaboutcolorblindnesslikeitsvaryingtypesanddegrees.Avastmajorityforinstancehavetroubleseeingredorgreenduetoageneticdefect(遗传缺陷).Blue-yellowcolorblindnesshoweverisrareranddevelopslaterinlifebecauseofagingillnessorheadinjuriesetc.HestartedexperimentingwithoneofthemostcommonrepresentationsofpointsintheRGBcolormodel.WhattheDanKamappattemptstodoistocleanupthecolorspaceoftheimageorvideosignalsothatcolorscanbevisibletothosesufferingfromviewingproblems.“Youcanadjusttheapptofityourneeds.Thereisarangeandnoteveryonewhoiscolor-blindseesthingsthesame.”SaysKaminsky.

SparkmanacopyeditoratCNETtriedouttheappandwaspleasedwiththeresults."Itwouldbeusefulfordressingforajobinterview"hesaid.Butusingitforhisartis“themostpracticalapplication."ItworkedwellonLEDandotherlightsonelectronicgadgetswhichmeansSparkmancannowidentifythepowerlightonhiscomputerdisplayasgreen.

1.AccordingtothefirsttwoparagraphswecanknowthatDanKam___________.

A.isdesignedtohelppeoplewithcolorblindness

B.canturnvaguecolorsintorealones

C.isaphoneusedtohelpdrawingpictures

D.appearedinthemovieStarTrek

2.HowdoesDanKam’sappwork?

A.Itp