diff --git a/frontend/src/components/blocks/collection/opencv/Threshold.json b/frontend/src/components/blocks/collection/opencv/Threshold.json
index bd409ce4..ee320620 100644
--- a/frontend/src/components/blocks/collection/opencv/Threshold.json
+++ b/frontend/src/components/blocks/collection/opencv/Threshold.json
@@ -1 +1 @@
-{"editor":{"id":"60e8cdc7-34d3-4beb-80de-2bddc03d423f","locked":false,"offsetX":0,"offsetY":0,"zoom":100,"gridSize":0,"layers":[{"id":"f4fd5b41-3e1a-4182-8a5e-8be002669590","type":"diagram-links","isSvg":true,"transformed":true,"models":{"24de608e-f5bb-45de-8304-5e5bed4b7004":{"id":"24de608e-f5bb-45de-8304-5e5bed4b7004","type":"default","selected":false,"source":"42f6bb63-7252-482d-a7f3-6b56663b4170","sourcePort":"be9fa214-ee16-4021-a6f4-2c6ccc807002","target":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","targetPort":"9003bc47-4862-4317-a655-19234120a0ca","points":[{"id":"97c7d028-2d02-417d-b462-27a11c7af737","type":"point","x":304.5,"y":354.5},{"id":"385f5905-8d63-411f-9e67-4d9ae11333e8","type":"point","x":360.5,"y":425.33331298828125}],"labels":[],"width":3,"color":"gray","curvyness":50,"selectedColor":"rgb(0,192,255)"},"1651d64a-2338-4447-8a41-927b053d45df":{"id":"1651d64a-2338-4447-8a41-927b053d45df","type":"default","selected":false,"source":"035c4ce2-fc29-489b-8461-68a82050f5fa","sourcePort":"d24cd2f9-860d-4165-925a-1d6e7db57550","target":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","targetPort":"7a8ae1d7-5550-44a7-9bdb-efa8fffbc3c0","points":[{"id":"d872cdfe-09d2-4e03-911f-681f21f56806","type":"point","x":301.5,"y":669.5},{"id":"07bed4b9-ab2d-4f72-9f94-5cb369b88519","type":"point","x":360.5,"y":611.6666870117188}],"labels":[],"width":3,"color":"gray","curvyness":50,"selectedColor":"rgb(0,192,255)"},"f00e117f-f142-4079-bb0b-8249e4248b2a":{"id":"f00e117f-f142-4079-bb0b-8249e4248b2a","type":"default","selected":false,"source":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","sourcePort":"84c3dbd9-b8d6-46a2-83b4-2c672b6ca6b2","target":"961a922a-6682-4abe-b2bc-096b4a31e942","targetPort":"f5f94e30-a2c9-4352-8ff3-9b163740e11c","points":[{"id":"d18dbd5b-88ec-4444-b7dd-a491c559c0da","type":"point","x":1437.1500244140625,"y":518.5},{"id":"9c478c09-8edf-4fa6-ab96-5a99486a1fe6","type":"point","x":1486.5,"y":517.5}],"labels":[],"width":3,"color":"gray","curvyness":50,"selectedColor":"rgb(0,192,255)"},"548f6298-a206-4f2a-9021-7ae270f18ba2":{"id":"548f6298-a206-4f2a-9021-7ae270f18ba2","type":"default","selected":false,"source":"0006-88523d6e-871d-4b39-a998-ccf599c8f890","sourcePort":"58e14719-baa6-4d8e-ac50-28bdd06b429f","target":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","targetPort":"6c1de753-46a8-435b-922a-17e17216a9ca","points":[{"id":"8e7ec302-f891-4499-a6ee-a53424c38466","type":"point","x":698,"y":127.5},{"id":"70731f19-f6d3-44e9-a55f-9a140ba5f760","type":"point","x":704.7999877929688,"y":239}],"labels":[],"width":3,"color":"gray","curvyness":50,"selectedColor":"rgb(0,192,255)"},"b39c688c-ff35-428a-add8-cff7de6c30de":{"id":"b39c688c-ff35-428a-add8-cff7de6c30de","type":"default","selected":false,"source":"0007-674ec4e7-1eae-4b2d-acf8-73d848ad8ac5","sourcePort":"78a14d59-a014-47e4-819f-9902aef71a51","target":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","targetPort":"dc1c974e-3e78-4827-b331-0fce9bdb0076","points":[{"id":"9fd1f6aa-78c8-4c0a-b025-3790346c8771","type":"point","x":1119,"y":127.5},{"id":"6eb1b7b4-a842-48bb-ba01-f17010cdb2b1","type":"point","x":1093.2833251953125,"y":239}],"labels":[],"width":3,"color":"gray","curvyness":50,"selectedColor":"rgb(0,192,255)"}}},{"id":"e5288b4f-d279-465c-83ae-50efec729959","type":"diagram-nodes","isSvg":false,"transformed":true,"models":{"b0a6e3f0-98af-4959-8237-19a66cbabb1e":{"id":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","type":"basic.code","selected":false,"x":352,"y":161,"ports":[{"id":"9003bc47-4862-4317-a655-19234120a0ca","type":"port.input","x":353,"y":417.83331298828125,"name":"Img","alignment":"left","parentNode":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","links":["24de608e-f5bb-45de-8304-5e5bed4b7004"],"in":true,"label":"Img","hideLabel":false},{"id":"7a8ae1d7-5550-44a7-9bdb-efa8fffbc3c0","type":"port.input","x":353,"y":604.1666870117188,"name":"Enable","alignment":"left","parentNode":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","links":["1651d64a-2338-4447-8a41-927b053d45df"],"in":true,"label":"Enable","hideLabel":false},{"id":"84c3dbd9-b8d6-46a2-83b4-2c672b6ca6b2","type":"port.output","x":1429.6500244140625,"y":511,"name":"Out","alignment":"right","parentNode":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","links":["f00e117f-f142-4079-bb0b-8249e4248b2a"],"in":false,"label":"Out","hideLabel":false},{"id":"6c1de753-46a8-435b-922a-17e17216a9ca","type":"port.parameter","x":697.2999877929688,"y":231.5,"name":"Lower Threshold","alignment":"top","parentNode":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","links":["548f6298-a206-4f2a-9021-7ae270f18ba2"],"in":true,"label":"Lower Threshold","hideLabel":false},{"id":"dc1c974e-3e78-4827-b331-0fce9bdb0076","type":"port.parameter","x":1085.7833251953125,"y":231.5,"name":"Upper Threshold","alignment":"top","parentNode":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","links":["b39c688c-ff35-428a-add8-cff7de6c30de"],"in":true,"label":"Upper Threshold","hideLabel":false}],"data":{"code":"import cv2\nimport numpy as np\n\ndef main(inputs, outputs, parameters, synchronise):\n\n    lower = parameters.read_number(\"LowerThreshold\"))\n    upper = parameters.read_number(\"UpperThreshold\"))\n    \n    auto_enable = False\n    try:\n        enable = inputs.read_number(\"Enable\")\n    except Exception:\n        auto_enable = True\n\n    while(auto_enable or inputs.read_number('Enable')):\n        frame = inputs.read_image(\"Img\")\n        if frame is None:\n            continue\n\n        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)\n        (T, thresh) = cv2.threshold(frame, lower, upper, cv2.THRESH_BINARY)\n        output = cv2.cvtColor(thresh, cv2.COLOR_GRAY2BGR)\n        \n        outputs.share_image('Out', output)\n\n        synchronise()","frequency":"30","params":[{"name":"Lower Threshold"},{"name":"Upper Threshold"}],"ports":{"in":[{"name":"Img"},{"name":"Enable"}],"out":[{"name":"Out"}]},"size":{"width":"958px","height":"500px"}}},"42f6bb63-7252-482d-a7f3-6b56663b4170":{"id":"42f6bb63-7252-482d-a7f3-6b56663b4170","type":"basic.input","selected":false,"x":211,"y":328,"ports":[{"id":"be9fa214-ee16-4021-a6f4-2c6ccc807002","type":"port.output","x":297,"y":347,"name":"input-out","alignment":"right","parentNode":"42f6bb63-7252-482d-a7f3-6b56663b4170","links":["24de608e-f5bb-45de-8304-5e5bed4b7004"],"in":false,"label":"Img","hideLabel":true}],"data":{"name":"Img"}},"961a922a-6682-4abe-b2bc-096b4a31e942":{"id":"961a922a-6682-4abe-b2bc-096b4a31e942","type":"basic.output","selected":false,"x":1478,"y":491,"ports":[{"id":"f5f94e30-a2c9-4352-8ff3-9b163740e11c","type":"port.input","x":1479,"y":510,"name":"output-in","alignment":"left","parentNode":"961a922a-6682-4abe-b2bc-096b4a31e942","links":["f00e117f-f142-4079-bb0b-8249e4248b2a"],"in":true,"label":"output-in","hideLabel":true}],"data":{"name":"Out"}},"035c4ce2-fc29-489b-8461-68a82050f5fa":{"id":"035c4ce2-fc29-489b-8461-68a82050f5fa","type":"basic.input","selected":false,"x":208,"y":643,"ports":[{"id":"d24cd2f9-860d-4165-925a-1d6e7db57550","type":"port.output","x":294,"y":662,"name":"input-out","alignment":"right","parentNode":"035c4ce2-fc29-489b-8461-68a82050f5fa","links":["1651d64a-2338-4447-8a41-927b053d45df"],"in":false,"label":"Enable","hideLabel":true}],"data":{"name":"Enable"}},"0006-88523d6e-871d-4b39-a998-ccf599c8f890":{"id":"0006-88523d6e-871d-4b39-a998-ccf599c8f890","type":"basic.constant","selected":false,"x":637,"y":12,"ports":[{"id":"58e14719-baa6-4d8e-ac50-28bdd06b429f","type":"port.output","x":690.5,"y":120,"name":"constant-out","alignment":"bottom","parentNode":"0006-88523d6e-871d-4b39-a998-ccf599c8f890","links":["548f6298-a206-4f2a-9021-7ae270f18ba2"],"in":false,"label":"Lower 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","image":"data:image/svg+xml;base64,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"},"design":{"board":"Python3-Noetic","graph":{"blocks":[{"id":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","type":"basic.code","data":{"code":"import cv2\nimport numpy as np\n\ndef main(inputs, outputs, parameters, synchronise):\n\n    lower = parameters.read_number(\"LowerThreshold\"))\n    upper = parameters.read_number(\"UpperThreshold\"))\n    \n    auto_enable = False\n    try:\n        enable = inputs.read_number(\"Enable\")\n    except Exception:\n        auto_enable = True\n\n    while(auto_enable or inputs.read_number('Enable')):\n        frame = inputs.read_image(\"Img\")\n        if frame is None:\n            continue\n\n        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)\n        (T, thresh) = cv2.threshold(frame, lower, upper, cv2.THRESH_BINARY)\n        output = cv2.cvtColor(thresh, cv2.COLOR_GRAY2BGR)\n        \n        outputs.share_image('Out', output)\n\n        synchronise()","frequency":"30","params":[{"name":"Lower Threshold"},{"name":"Upper Threshold"}],"ports":{"in":[{"name":"Img"},{"name":"Enable"}],"out":[{"name":"Out"}]},"size":{"width":"958px","height":"19px"}},"position":{"x":352,"y":161}},{"id":"42f6bb63-7252-482d-a7f3-6b56663b4170","type":"basic.input","data":{"name":"Img"},"position":{"x":211,"y":328}},{"id":"961a922a-6682-4abe-b2bc-096b4a31e942","type":"basic.output","data":{"name":"Out"},"position":{"x":1478,"y":491}},{"id":"035c4ce2-fc29-489b-8461-68a82050f5fa","type":"basic.input","data":{"name":"Enable"},"position":{"x":208,"y":643}},{"id":"0006-88523d6e-871d-4b39-a998-ccf599c8f890","type":"basic.constant","data":{"name":"Lower Threshold","value":"127","local":true},"position":{"x":637,"y":12}},{"id":"0007-674ec4e7-1eae-4b2d-acf8-73d848ad8ac5","type":"basic.constant","data":{"name":"Upper Threshold","value":"255","local":true},"position":{"x":1057,"y":11}}],"wires":[{"source":{"block":"42f6bb63-7252-482d-a7f3-6b56663b4170","port":"input-out","name":"Img"},"target":{"block":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","port":"Img","name":"Img"}},{"source":{"block":"035c4ce2-fc29-489b-8461-68a82050f5fa","port":"input-out","name":"Enable"},"target":{"block":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","port":"Enable","name":"Enable"}},{"source":{"block":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","port":"Out","name":"Out"},"target":{"block":"961a922a-6682-4abe-b2bc-096b4a31e942","port":"output-in","name":"output-in"}},{"source":{"block":"0006-88523d6e-871d-4b39-a998-ccf599c8f890","port":"constant-out","name":"Lower Threshold"},"target":{"block":"b0a6e3f0-98af-4959-8237-19a66cbabb1e","port":"Lower Threshold","name":"Lower Threshold"}},{"source":{"block":"0007-674ec4e7-1eae-4b2d-acf8-73d848ad8ac5","port":"constant-out","name":"Upper 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\ No newline at end of file
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cv2\nimport numpy as np\n\ndef main(inputs, outputs, parameters, synchronise):\n\n    lower = parameters.read_number(\"LowerThreshold\")\n    upper = parameters.read_number(\"UpperThreshold\")\n    \n    auto_enable = False\n    try:\n        enable = inputs.read_number(\"Enable\")\n    except Exception:\n        auto_enable = True\n\n    while(auto_enable or inputs.read_number('Enable')):\n        frame = inputs.read_image(\"Img\")\n        if frame is None:\n            continue\n\n        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)\n        (T, thresh) = cv2.threshold(frame, lower, upper, cv2.THRESH_BINARY)\n        output = cv2.cvtColor(thresh, cv2.COLOR_GRAY2BGR)\n        \n        outputs.share_image('Out', output)\n\n        synchronise()","frequency":"30","params":[{"name":"LowerThreshold"},{"name":"UpperThreshold"}],"ports":{"in":[{"name":"Img"},{"name":"Enable"}],"out":[{"name":"Out"}]},"size":{"width":"727px","height":"14px"}},"position":{"x":496,"y":229}},{"id":"0004-ac7002a6-40c7-4418-962f-7c675c6f001e","type":"basic.constant","data":{"name":"Lower Threshold","value":"127","local":true},"position":{"x":716,"y":65}},{"id":"0005-112cbdff-42c7-474a-9fa5-68735f94a527","type":"basic.constant","data":{"name":"Upper Threshold","value":"255","local":true},"position":{"x":1019,"y":66}},{"id":"c818c9da-dc27-4ce7-895a-24e94bdfcc16","type":"basic.output","data":{"name":"Out"},"position":{"x":1466,"y":521}}],"wires":[{"source":{"block":"0004-ac7002a6-40c7-4418-962f-7c675c6f001e","port":"constant-out","name":"Lower 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\ No newline at end of file