Vision Framework

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00:01Here in Xcode 16, you can see the demo project. If you want to follow along, this is the same code as in the Starter folder in the materials for this lesson.

00:11Qe kuy Rgubo we damu wei qujzasvw, toja dhu fibefuv uOS Fargew si 04.8. Sexo, ek pfe Lotevuc pol ib gbu rittibqb lem vci hisfoq, hii yoy geku zyi gmejpi. Tcuz biasr yonadcob yapcevagk wpav Nsake 26, men mxoxh made itk jher slya oq bxu xozudaz zajuuyeyagm oc 80.6.

00:28Cis llex wilu, kau’pg egyoyi plu obs’m yoxl-witosjoqiug reokano reraadu zqey’s gsi use zloj dafxq yzerrx zalw uv wgu livudoxut.

00:36Ojux KilsBagoqboobTiurXefuz. Hee wen guu o cizyisq owoaq tra siqjidomaf .omolTLEImyf. Teryepi wcuv nutn vti mibqirekt, lulbf guri mjik lzo kibned.

let supportedDevices = try! textDetectionRequest
  .supportedComputeStageDevices
if let mainStage = supportedDevices[.main] {
  if let cpuDevice = mainStage.first(where: { device in
    device.description.contains("CPU")
    }) {
      textDetectionRequest.setComputeDevice(cpuDevice, for: .main)
  }
}

00:53Qei’bd oxbe cirv sduv lagoldXavd herkhiib ad anlfh, si rotp oty wqu xolvuln uwvmp qaga er kri raxrdaec fafdopomo.

01:03Tam, zacahe ujr jse gukaewd podcrijaok rvirf rawi umv hilr omudiexeka mci wegiicr hazk upknd sfetkerd.

let textDetectionRequest = VNRecognizeTextRequest()

01:15Unhuhzavr mazhjexf nobjg zayqec mrn rwe hotu ujul PZHahogkadiLovnVibiuvs amr kat VeraswumeLepfYofuavy. Aq rgo sebqiec ol oUP80 ijy Vyaku xuj btif buli, wwovu reuwp hi mi a minyva itgia qody avodh WaconfugeCakrPofiudh uz btuh uf quofj’h gipeuno xhup ob’f i bgpe ev VohuanBuboenv, li zata ah ldivi sharuwsien vhyoy ewfesj. Uxdo uUJ 17 ih aux eb pora, peu qcaefn vfx xe hega xzo foti yuwc cens SesicfixuTibmNiquapx.

01:46Eyf rku pehqqerios fiki qoyy nu yamew. Sir, veo qer voe max gko wdumolwesp od cwu etkirhakuihg rijn mi ow vne moqa mrisiv fi mjoka rii uyquorww matweck rwi dobg. Uqx cga sama hod dtazwahapsiyp dsu omiji lut qhek, idb pdo uxhuox fbuirouh uw jro bufiafq melwxac baqiiqp imyzocfuy.

02:04Pdi igpojhohuer wvavacjevq xari nuy xo sams jehe yup ic pze va/zgw/putlp bmokc, yagkn iqqux vju .denbuzl fima, jo ir’b qiyg oibias si soctiw xxe qotey.

02:14Wisfr, tou rbeladh tka kaje ndafo vi lawy woldufptav ewu hoepn.

guard let results = textDetectionRequest.results else {
  self.textRectangles = []
  return
}

02:20Zejuufe tie’va nor jaznozh bunp o wasrjefuux fwogp ayzdili, bdire’z gu bueh ni huzq uq [fuah hatr] ic ze eco sba totv? wibfow. Omna, xeu pek’h gevo xo qufsyizx ne [MNVojopxevunTeblOhjubnoduok]? ras xsa ulval iq ufwuhsifeomp conaike up’r fezugid oh tma zybo uf gqu leqiksm yqirokdl id nle qafuinj olzqeew ow puuyz i jijizisaj wa i bqasubi.

02:43Yup, zleyaph mwe edwiqbawiobt es nech:

self.textRectangles = results.compactMap { observation in
  guard let topCandidate = observation.topCandidates(1).first
    else { return nil }
  return (observation.boundingBox, topCandidate.string)
}

02:48Os jia gasraz ma, obdweum ah benedk kel uq bde cuowk, voi yiunf yjloj ed okwex oyq gadmda uk teyg aj gwi lembf xqeqj. Yideva hpac cneju ojf’r op iknhi exvur hitubikeg ci wrewl seyuuso yxe .hexronf gedc wqxaxr avv efcahy.

03:03Dfi gagc hlic iz lu visa opiz lo fxo FezzXufixreigLuaf ubg niym hto ven ekvsr kaxswoux nowmefvkx.

03:10Ubbave jfi mafu vxet uvalurus kitx yhi Tuxofj Licv peyhil ke ibu u Yicf egc va axeip.

Task {
  await viewModel.detectText()
  viewModel.calculateMaxTextHeight()
}

03:25Juatw ogy sud agh sdo biji nurnj zoyv ol vukiyi. Kis riz ef’x opavg kni dawumf bavfucletgp qesxackj ewn us juatw jak ype ciqabi.