Documentation

Una is developed by Una Technologies Limited

All rights reserved

© 2022 Una Technologies Limited

Print

Checking Wearing Mask or Not

Face get mask type

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Azure_AiResult_getContentAsJsonValue\"><value name=\"result\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value></block></xml>"}
				
			

This is used for detecting people are wearing mask or not. 

Parameters: AI Result (Masked Face Detection from Azure)
Output: AI Result
Sample code:

This is using a for loop to display more than one people wear mask. Also, using “get faces” block and “get value at 0” block for getting mask type. 

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Azure_FaceDetectionResult_count\"><value name=\"faceDetectionResult\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"ScreenItem_Layout_add\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value><value name=\"item\"><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"1\" _input_init=\"true\"></mutation><value name=\"text\"><block type=\"Json_JsonValue_stringify\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation><value name=\"jsonValue\"><block type=\"Json_toJsonValue\"><value name=\"data\"><block type=\"Azure_Face_getMaskType\"><value name=\"face\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"Azure_FaceDetectionResult_getFaces\"><value name=\"faceDetectionResult\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></value></block></value></block></value></block></value></block></statement></block></xml>"}
				
			
				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>image</variable><variable>result</variable><variable>index</variable><variable>face</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">mainLayout</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"ScreenItem_createLayout\"/></value><next><block type=\"variables_set\"><field name=\"VAR\">mainScreen</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Screen_create\"><value name=\"label\"><shadow type=\"text\"><field name=\"TEXT\">Main</field></shadow></value><value name=\"layout\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">image</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Download_image\"><value name=\"url\"><shadow type=\"text\"><field name=\"TEXT\">https://image.shutterstock.com/image-photo/2-people-protective-masks-walking-260nw-1781747534.jpg</field></shadow></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">result</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Azure_detectMaskedFaces\"><value name=\"img\"><block type=\"variables_get\"><field name=\"VAR\">image</field></block></value></block></value><next><block type=\"pxt_controls_for\"><value name=\"VAR\"><shadow type=\"variables_get_reporter\"><field name=\"VAR\">index</field></shadow></value><value name=\"TO\"><shadow type=\"math_whole_number\"><field name=\"NUM\">0</field></shadow><block type=\"math_arithmetic\"><field name=\"OP\">MINUS</field><value name=\"A\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Azure_FaceDetectionResult_count\"><value name=\"faceDetectionResult\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value></block></value><value name=\"B\"><shadow type=\"math_number\"><field name=\"NUM\">1</field></shadow></value></block></value><statement name=\"DO\"><block type=\"ScreenItem_Layout_add\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value><value name=\"item\"><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"1\" _input_init=\"true\"></mutation><value name=\"text\"><block type=\"Json_JsonValue_stringify\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation><value name=\"jsonValue\"><block type=\"Json_toJsonValue\"><value name=\"data\"><block type=\"Azure_Face_getMaskType\"><value name=\"face\"><block type=\"lists_index_get\"><value name=\"LIST\"><block type=\"Azure_FaceDetectionResult_getFaces\"><value name=\"faceDetectionResult\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value></block></value><value name=\"INDEX\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"variables_get\"><field name=\"VAR\">index</field></block></value></block></value></block></value></block></value></block></value></block></value></block></statement><next><block type=\"ScreenItem_Layout_add\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value><value name=\"item\"><block type=\"Azure_applyFaceDetectionResult\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation><value name=\"result\"><block type=\"variables_get\"><field name=\"VAR\">result</field></block></value><value name=\"img\"><block type=\"variables_get\"><field name=\"VAR\">image</field></block></value></block></value></block></next></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
				
			

The output:

Next Checking Mask is Covering Nose and Mouth