I am trying to rotate BBox of Label Studio by some angle 'x'. it is working fine for some annotations but in some it is showing result way worse.
LS Annotation
{
"id": 5032,
"data": {
"ocr": "/data/upload/27/ff12bef9-BCP_9528.jpg"
},
"annotations": [
{
"id": 5074,
"created_username": " knuckle13@gts.ai, 20",
"created_ago": "1 week, 5 days",
"result": [
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 28.652915486588846,
"y": 46.77020142417043,
"width": 10.804601238824164,
"height": 7.594662081257685,
"rotation": 12.586747669321653
},
"id": "_NMJ3S2sRU",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 28.652915486588846,
"y": 46.77020142417043,
"width": 10.804601238824164,
"height": 7.594662081257685,
"rotation": 12.586747669321653,
"text": [
"Plate"
]
},
"id": "_NMJ3S2sRU",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 29.389845656118485,
"y": 49.45965786007913,
"width": 1.0134792819827958,
"height": 3.5450921386229526,
"rotation": 7.125016348900374
},
"id": "sWsYk3ZE3T",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 29.389845656118485,
"y": 49.45965786007913,
"width": 1.0134792819827958,
"height": 3.5450921386229526,
"rotation": 7.125016348900374,
"text": [
"7"
]
},
"id": "sWsYk3ZE3T",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 30.42209307295282,
"y": 50.0435553887935,
"width": 1.0134792819827958,
"height": 3.5450921386229526,
"rotation": 7.125016348900374
},
"id": "AIhI8vTSVr",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 30.42209307295282,
"y": 50.0435553887935,
"width": 1.0134792819827958,
"height": 3.5450921386229526,
"rotation": 7.125016348900374,
"text": [
"P"
]
},
"id": "AIhI8vTSVr",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 31.47985668636047,
"y": 50.36742263591049,
"width": 1.0134792819827956,
"height": 3.545092138622952,
"rotation": 5.394718292439563
},
"id": "heXu9Su5Hk",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 31.47985668636047,
"y": 50.36742263591049,
"width": 1.0134792819827956,
"height": 3.545092138622952,
"rotation": 5.394718292439563,
"text": [
"R"
]
},
"id": "heXu9Su5Hk",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 32.46368253283166,
"y": 50.61215095338137,
"width": 1.190466892863956,
"height": 3.545092138622952,
"rotation": 3.70035786079211
},
"id": "3CSPihE9Sm",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 32.46368253283166,
"y": 50.61215095338137,
"width": 1.190466892863956,
"height": 3.545092138622952,
"rotation": 3.70035786079211,
"text": [
"H"
]
},
"id": "3CSPihE9Sm",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 33.6085387587752,
"y": 51.09178106625387,
"width": 1.088342979923151,
"height": 3.4061513485192694,
"rotation": 3.7003578607926215
},
"id": "ldl0FtSVdj",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 33.6085387587752,
"y": 51.09178106625387,
"width": 1.088342979923151,
"height": 3.4061513485192694,
"rotation": 3.7003578607926215,
"text": [
"0"
]
},
"id": "ldl0FtSVdj",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 34.75339498471874,
"y": 51.279462414769206,
"width": 1.0853604571419213,
"height": 3.678027307764955,
"rotation": 3.700357860792394
},
"id": "f8J6Hf3qYL",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 34.75339498471874,
"y": 51.279462414769206,
"width": 1.0853604571419213,
"height": 3.678027307764955,
"rotation": 3.700357860792394,
"text": [
"7"
]
},
"id": "f8J6Hf3qYL",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 35.804410536404625,
"y": 51.633971628631485,
"width": 1.3185874213867632,
"height": 3.8075471242074705,
"rotation": 3.700357860792792
},
"id": "VTxk-oCec-",
"from_name": "bbox",
"to_name": "image",
"type": "rectangle",
"origin": "manual"
},
{
"original_width": 1832,
"original_height": 1648,
"image_rotation": 0,
"value": {
"x": 35.804410536404625,
"y": 51.633971628631485,
"width": 1.3185874213867632,
"height": 3.8075471242074705,
"rotation": 3.700357860792792,
"text": [
"8"
]
},
"id": "VTxk-oCec-",
"from_name": "transcription",
"to_name": "image",
"type": "textarea",
"origin": "manual"
}
],
"was_cancelled": false,
"ground_truth": false,
"created_at": "2022-09-12T06:11:28.275515Z",
"updated_at": "2022-09-12T06:11:28.275577Z",
"lead_time": 97.278,
"task": 5032,
"completed_by": 20,
"parent_prediction": null,
"parent_annotation": null
}
],
"predictions": []
}
What my boss wants
I did tried it but this is result
Output :
BCP_9528.txt,Plate,Plate,525,771,198,126,12.586747669321653 BCP_9528.txt,Character,7,539,816,19,59,7.125016348900374 BCP_9528.txt,Character,P,558,825,19,59,7.125016348900374 BCP_9528.txt,Character,R,577,831,19,59,5.394718292439563 BCP_9528.txt,Character,H,595,835,22,59,3.70035786079211 BCP_9528.txt,Character,0,616,842,20,57,3.7003578607926215 BCP_9528.txt,Character,7,637,846,20,61,3.700357860792394 BCP_9528.txt,Character,8,656,851,25,63,3.700357860792792
Function which output this.
# Rotate function.
def rotate(x,y,xo,yo,theta): #rotate x,y around xo,yo by theta (rad)
xr=math.cos(theta)*(x-xo)-math.sin(theta)*(y-yo) + xo
yr=math.sin(theta)*(x-xo)+math.cos(theta)*(y-yo) + yo
return [xr,yr]
# Loop over given json and update
# Polygon to pixels because label studio uses percentage instead of pixles.
for percentageConversion in hold_data:
# Only proceed if given result
# value have text in it.
if 'text' in percentageConversion['value']:
min_width = math.ceil((percentageConversion['value']['x'] * percentageConversion['original_width']) / 100)
min_height = math.ceil((percentageConversion['value']['y'] * percentageConversion['original_height']) / 100)
max_width = math.ceil((percentageConversion['value']['width'] * percentageConversion['original_width']) / 100)
max_height = math.ceil((percentageConversion['value']['height'] * percentageConversion['original_height']) / 100)
# Append data to the container.
data_d.append([min_width, min_height, max_width, max_height, percentageConversion['value']['text'][0], percentageConversion['value']['rotation']])
for dataset in data_d:
# Push given value of text with
# coordinates.
with open(image_filename.replace('.jpg', '.txt'), 'a') as f:
f.write('\n{file_name},{content},{type},{x},{y},{x1},{y1},{rotation}'.format(file_name=image_filename.replace('.jpg', '.txt'), content='Plate' if dataset[4] == 'Plate' else 'Character', type=dataset[4], x=int(dataset[0]), y=int(dataset[1]), x1=int(dataset[2]), y1=int(dataset[3]), rotation=dataset[5]))