Tutorial - Make a mosaized picture

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Mosaizer Pro Tutorial The Mosaizer: recreate the picture Here you learn how to make a mosaized picture from pieces of its own bitmap. We will also demonstrate how to create a mosaic picture using a different mosaized library of pictures. The Mosaizer: how to create a mosaized mosaic About the Mosaizer The Mosaizer is a tool that recreates a picture from pieces of itself. The Mosaizer cuts a picture into a number of sub‐pictures, and uses these to rebuild that same picture again. The ‘chunky’ effect that will result is caused by a slightly offset of color match, where not the correct sub‐picture is put back on its original position, but one that also fits pretty well. Requirements The Mosaizer requires only one source picture. In case a different picture is used for Mosaizing and for picture recreation, quite some color mismatch may occur. We selected two similar pictures of Wall‐E that are almost the same in color palette. The steps for successful Mosaizing Step 1: select the mosaizer picture and the cell size The mosaizer picture can be loaded via ‘File | Open mosaizer picture’ or in case a new picture is used: ‘File | New mosaizer picture”. The selected picture is seen in the tab ‘Mosaizer’ on the top‐right. The next step is to choose the cell size of the Mosaizer. This is a preset value, ranging from 16 to 196 px width and height. We select a cell size of 60 x 60 px (via tab ‘Mosaizer’ on the left). When a size is selected ...

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MosaizerProTutorialTheMosaizer:recreatethepicture

Hereyoulearnhowtomakeamosaizedpicturefrompiecesofitsownbitmap.Wewillalsodemonstratehowtocreateamosaicpictureusingadifferentmosaizedlibraryofpictures.

TheMosaizer:howtocreateamosaizedmosaicAbouttheMosaizerTheMosaizerisatoolthatrecreatesapicturefrompiecesofitself.TheMosaizercutsapictureintoanumberofsub‐pictures,andusesthesetorebuildthatsamepictureagain.The‘chunky’effectthatwillresultiscausedbyaslightlyoffsetofcolormatch,wherenotthecorrectsub‐ pictureisputbackonitsoriginalposition,butonethatalsofitsprettywell.RequirementsTheMosaizerrequiresonlyonesourcepicture.IncaseadifferentpictureisusedforMosaizingandforpicturerecreation,quitesomecolormismatchmayoccur.WeselectedtwosimilarpicturesofWall‐Ethatarealmostthesameincolorpalette.ThestepsforsuccessfulMosaizingStep1:selectthemosaizerpictureandthecellsizeThemosaizerpicturecanbeloadedvia‘File|Openmosaizerpicture’orincaseanewpictureisused:‘File|Newmosaizerpicture”.Theselectedpictureisseeninthetab‘Mosaizer’onthetop‐right.ThenextstepistochoosethecellsizeoftheMosaizer.Thisisapresetvalue,rangingfrom16to196pxwidthandheight.Weselectacellsizeof60x60px(viatab‘Mosaizer’ontheleft).Whenasizeisselected,thenumberofhorizontalandverticalcutscanberead(notvisibleintheexampleontheright):32x37=1184sub‐ pictures.Step2:MosaizethemosaizerpictureSimplypressthe‘Mosaize!’button.Themosaizerpicturewillnowbecutinthegivennumberofsub‐picturesandstoredinatemporaryfolder(called‘/Temp’).Theresultingpaletteisnowshown(exampleonnextpage).Dependingonthenumberofpictures,thismaytakeawhile.

Information:thepaletteisbuiltfrom3horizontalbandsofpictures.Eachbandissortedfromlefttorightoverthecolorspectrum,andforcolorsaturationwithinabandinverticaldirection.Thetopbandshowsthelightestcolors,thebottombandthedarkest.Technicalnote:horizontalaxisistheHue,verticalaxistheSaturationandthebandrepresentsarangeofLightnessvalues(HSLcolorsystem).

ThecolorspectrumofWall‐Esourcepicture(onlythetopbandisshownhere)Step3:selectthesourcepictureAftersuccessfulmosaizing,atemporarypicturelibrarywillbecomeavailable,called‘(Multi)Mosaized’(exampleontheright).ThislibrarystaysactiveaslongastheMosaizerProsessionlasts.Fromherethecreationofthephotomosaicfollowsthenormalpathofanyotherphotomosaic.Justthelibraryisnowdifferent.Torecreatethemosaizerpicturefromthislibrary,loadthesamepictureasthemosaizedone.Thisisdonevia‘File|Opensourcepicture´orifanewfileisused‘File|Newsourcepicture’.Step4:selectthepropercellsizeThisisthemorecreativepartoftheprocess.Ifwestartwiththesmallercellsizeasthemosaizedcell(forinstance40x40)theresultingpicturewillhave51x76cells.Thisnumberdoesnotnecessarilyequaltheoriginalcutnumber(32x37).Information:whentheexactnumberofcellsisselectedasoftheoriginalmosaizedversion(bothnumberandsize),wemayexpectafullrecreationofthesourcefileasifnothinghadhappened.SinceMosaizerrandomlyselectsthebestfitfromacertain‘topX’matches,theresultmaystillbeexiting.Whentheoption’ForceMosaizer’scellsize’ischeckedandthecellsizeisthesameasthemosaizedone,afullrecreationcanbeexpected.Pressthe‘Create’buttonandlookattheresultingpicture(nextpage).Wealsouseadifferentsourcefile(butwiththesameWall‐Econtent),andtheresultisequallyimpressive.

Left:theoriginalsourcefileasthemosaizerpictureRight:adifferentpicturebutwiththesamesubjectcontentWecannowvarythecellsizeandtheresolutionandseehowitwillaffectthelevelofdetail(we’llcontinuewiththerightsourcepicture).Tip:stepbackafewmetersandlookagain…

Optionalstep1a:createoverlappingsub‐cellsThenumberofcellsiscalculatedbytheprogramwhenthecellsizeisselected.Thisnumberiscalculatedtohaveaminimumoverlapbetweenadjacentcellstoavoiddoublepartsinthetemporarysub‐picturelibrary.Youcanchangethisbymovingtheslider(seeexamplebelow):Whenthesliderismoved,overlappingsub‐pictureswillbegenerated.Apositiveoverlapindicatesthatpiecesofthesub‐picturesarere‐used(left),anegativeoverlapindicatesthatgapswillexistbetweenadjacentsub‐ picturesaftermosaizing(right).TIP1:varythecellshapefromsquaretorectangularandseewhateffectitwillgiveonthefullpicture(left)TIP2:sincethetemporarylibraryisjustanotherlibrary,tryusingthecircularsandseehowitcreatesacompletelyneweffect(middle)TIP3:usethefiltersandmasksandtheeffectofe.g.them_circlemaskontheresult(right)

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