Extraer datos de varias imágenes de un vídeo MP4 mediante el reconocimiento óptico de caracteres y el análisis de imágenes (Computer Vision API de Microsoft Azure) | Scripting and security

#Dividir un vídeo MP4 en imágenes
E:\programas\ffmpeg-20161204-1f5630a-win64-static\bin\ffmpeg.exe -i capturas.mp4 -f image2 -pix_fmt bgr8 %01d.jpg

#Analizar las imágenes mediante el reconocimiento óptico de caracteres y el análisis de imágenes (Computer Vision API de Microsoft Azure)
ls *.jpg | %{
    $vision = 'https://westcentralus.api.cognitive.microsoft.com/vision/v1.0/analyze'
    $features = 'Categories,Tags,Description,Color'
    $bytes = [System.IO.File]::ReadAllBytes($_.FullName)

    $response = Invoke-WebRequest `
         -Uri "$($vision)?visualFeatures=$($features)" `
         -Body $bytes `
         -ContentType "application/octet-stream" `
         -Headers @{'Ocp-Apim-Subscription-Key' = 'Clave del API'} `
         -Method 'Post' `
         -ErrorAction Stop `
         -UseBasicParsing | ConvertFrom-Json

    $response.description
    Start-Sleep -Seconds 5
}

#Dividir un vídeo MP4 en imágenes

E:\programas\ffmpeg-20161204-1f5630a-win64-static\bin\ffmpeg.exe -i capturas.mp4 -f image2 -pix_fmt bgr8 %01d.jpg

#Analizar las imágenes mediante el reconocimiento óptico de caracteres y el análisis de imágenes (Computer Vision API de Microsoft Azure)

ls *.jpg | %{

$vision = 'https://westcentralus.api.cognitive.microsoft.com/vision/v1.0/analyze'

$features = 'Categories,Tags,Description,Color'

$bytes = [System.IO.File]::ReadAllBytes($_.FullName)

$response = Invoke-WebRequest `

-Uri "$($vision)?visualFeatures=$($features)" `

-Body $bytes `

-ContentType "application/octet-stream" `

-Headers @{'Ocp-Apim-Subscription-Key' = 'Clave del API'} `

-Method 'Post' `

-ErrorAction Stop `

-UseBasicParsing | ConvertFrom-Json

$response.description

Start-Sleep -Seconds 5

}

Vídeo para analizar

Imágenes por separado

Resultado del análisis

664842115 688585835 603165808 627476146 626418807 645938350 677070464 666795442 684281875 678286725 668014332 690457754 616833201 621061932 687933602 605709637 627509952 665491536 691076002 613317099 621407279 673571558 669112605 655750160 674372557 646400125 649786747 620851982 674406684 652158048 642805257 640006623 655899193 659056460 687262007 668590438 675181876 693436113 687702182 646790023 676926121 621568369 625435395 647861099 648910865 635592448 617939461 696726665 618099711 659416939 677236113 678776791 679612243 614744025 622900739 645918245 600554646 688024427 673113552 654519620 614896792 690369711 646454473 675293134 658142321 613934793 691763182 662792625 613137955 609685840 643667027 608316114 691627887 637166655 616847440 685878014 689957254 611348282 688327377 603583753 681814639 655035947 636168418 669602613 639187648 686209003 655640049 696951267 667444474 693147836 623116752 622902526 628833445 626833121 610395601 669964604 602294577 608814227 629089682 654547130 682592777 637788697 642952914 621978088 665602831 698211780 608375905 686744538 662845181 645650255 623752935 622325405 603123799 669504378 633766155 644098761 665365206 689892786 602553102 668348007 607927010 628324366 690492727 680832186 634603681 614506506 680328677 697532128 610834697 663859904 678644091 696646993 697838865 677068372 638017249 628279048 657210593 604877736 649297616 684811443 606258097 623227827 639692982 643018823 659485590 670007994 638424121 666921446 607434764 673925064

Invocar expresiones con cmdlets codificados en Base64 (Invoke-Expression)

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Invoke-Command