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app.py
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app.py
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# import io
import cv2
from flask import Flask, render_template, request
from processor import *
from calculator import *
app = Flask(__name__)
@app.route('/', methods=['GET', 'POST'])
def index():
if request.method == 'GET':
return render_template('index.html')
elif request.method == 'POST':
template_variables = {}
form_image = request.files.get('image')
# image_binary = io.ByteIO(image.read())
try:
img = load_img_from_binary(form_image.read())
except cv2.error:
return render_template(
'result.html',
error=True,
error_msg=(
'Occurred error when process image.<br>'
'Please check file is correct image.'
)
)
form_image.seek(0)
original_img = load_img_from_binary(form_image.read())
circle_img = find_circle(img)
elipse_axies = get_elipse_axis(circle_img)
circle_top, circle_right, circle_bottom, circle_left = elipse_axies
if request.form.get('show_ellipse_axies') is not None:
draw_elipse_axises(img, elipse_axies)
template_variables.update({
'circle': {
'top': circle_top,
'bottom': circle_bottom,
'left': circle_left,
'right': circle_right,
},
})
# @@@ 파란 원과 수평선의 접점 계산
# 수평선은 이론상 x축에 평행해야하지만 실제로는 다를 수 있으므로 왼쪽 끝과 오른쪽 끝 점의 y좌표를 구해서 평균으로 사용
line_img = find_parallel_line(img)
parallel_line = detect_parallel_line(line_img)
x1, y1, x2, y2 = parallel_line
# 선 인식 문제로 중간부터 그릴 경우 처음부터 그리기 위함
parallel_line = extend_parallel_line(img, parallel_line)
parallel_line_y = (parallel_line[1] + parallel_line[3]) // 2
template_variables.update({
'parallel': {
'line': (parallel_line[:2], parallel_line[2:]),
'line_y': parallel_line_y,
'parallel_equation': f'y={parallel_line_y}'
},
})
if request.form.get('show_detected_line') is not None:
draw_detected_parallel_line(img, parallel_line)
# 접점 계산
contact_point = get_contact_point(elipse_axies, parallel_line)
template_variables['contact_point'] = contact_point
if request.form.get('show_contact_point') is not None:
draw_contact_point(img, contact_point)
# @@@ 접점 이용해서 접선 구하기
contact_line = get_contact_line(contact_point, elipse_axies)
template_variables['contact_line_point'] = contact_line
if request.form.get('show_contact_line') is not None:
draw_contact_line(img, contact_line)
# @@@ 구해진 값을 이용해서 각도 계산
angle_degree = get_contact_angle(parallel_line, contact_line)
template_variables['angle'] = angle_degree
if request.form.get('show_contact_angle') is not None:
img = draw_angle(img, angle_degree)
return render_template(
'result.html',
original_image=convert_image_to_base64(original_img),
result_image=convert_image_to_base64(img),
**template_variables,
)
@app.route('/multiple', methods=['GET', 'POST'])
def multiple():
if request.method == 'GET':
return render_template('multiple/index.html')
elif request.method == 'POST':
template_variables = {}
form_images = request.files.getlist('images')
render_images = []
for form_image in form_images:
render_image = {}
# image_binary = io.ByteIO(image.read())
try:
img = load_img_from_binary(form_image.read())
except cv2.error:
return render_template(
'result.html',
error=True,
error_msg=(
'Occurred error when process image.<br>'
'Please check file is correct image.'
)
)
form_image.seek(0)
original_img = load_img_from_binary(form_image.read())
render_image['original_image'] = convert_image_to_base64(original_img)
circle_img = find_circle(img)
elipse_axies = get_elipse_axis(circle_img)
circle_top, circle_right, circle_bottom, circle_left = elipse_axies
if request.form.get('show_ellipse_axies') is not None:
draw_elipse_axises(img, elipse_axies)
template_variables.update({
'circle': {
'top': circle_top,
'bottom': circle_bottom,
'left': circle_left,
'right': circle_right,
},
})
# @@@ 파란 원과 수평선의 접점 계산
# 수평선은 이론상 x축에 평행해야하지만 실제로는 다를 수 있으므로 왼쪽 끝과 오른쪽 끝 점의 y좌표를 구해서 평균으로 사용
line_img = find_parallel_line(img)
parallel_line = detect_parallel_line(line_img)
x1, y1, x2, y2 = parallel_line
# 선 인식 문제로 중간부터 그릴 경우 처음부터 그리기 위함
parallel_line = extend_parallel_line(img, parallel_line)
parallel_line_y = (parallel_line[1] + parallel_line[3]) // 2
template_variables.update({
'parallel': {
'line': (parallel_line[:2], parallel_line[2:]),
'line_y': parallel_line_y,
'parallel_equation': f'y={parallel_line_y}'
},
})
if request.form.get('show_detected_line') is not None:
draw_detected_parallel_line(img, parallel_line)
# 접점 계산
contact_point = get_contact_point(elipse_axies, parallel_line)
template_variables['contact_point'] = contact_point
if request.form.get('show_contact_point') is not None:
draw_contact_point(img, contact_point)
# @@@ 접점 이용해서 접선 구하기
contact_line = get_contact_line(contact_point, elipse_axies)
template_variables['contact_line_point'] = contact_line
if request.form.get('show_contact_line') is not None:
draw_contact_line(img, contact_line)
# @@@ 구해진 값을 이용해서 각도 계산
angle_degree = get_contact_angle(parallel_line, contact_line)
template_variables['angle'] = angle_degree
if request.form.get('show_contact_angle') is not None:
img = draw_angle(img, angle_degree)
render_image['result_image'] = convert_image_to_base64(img)
render_image.update(template_variables)
render_images.append(render_image)
return render_template(
'multiple/result.html',
render_images=render_images,
)
if __name__ == '__main__':
# If you want to change port number, change below code
app.run(host='0.0.0.0', port='51273')