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新增公式检测模块

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TonyLee1256
2024-04-11 16:44:19 +00:00
parent 840be6b843
commit 9e8ac666b0
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import os
import yaml
import argparse
import numpy as np
import glob
from onnxruntime import InferenceSession
from tqdm import tqdm
from models.det_model.preprocess import Compose
import cv2
# 注意：文件名要标准，最好都用下划线
# Global dictionary
SUPPORT_MODELS = {
'YOLO', 'PPYOLOE', 'RCNN', 'SSD', 'Face', 'FCOS', 'SOLOv2', 'TTFNet',
'S2ANet', 'JDE', 'FairMOT', 'DeepSORT', 'GFL', 'PicoDet', 'CenterNet',
'TOOD', 'RetinaNet', 'StrongBaseline', 'STGCN', 'YOLOX', 'HRNet',
'DETR'
}
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--infer_cfg", type=str, help="infer_cfg.yml",
default="./models/det_model/model/infer_cfg.yml"
)
parser.add_argument('--onnx_file', type=str, help="onnx model file path",
default="./models/det_model/model/rtdetr_r50vd_6x_coco.onnx"
)
parser.add_argument("--image_dir", type=str)
parser.add_argument("--image_file", type=str, default='/data/ljm/TexTeller/src/Tr00_0001015-page02.jpg')
parser.add_argument("--imgsave_dir", type=str,
default="."
)
def get_test_images(infer_dir, infer_img):
"""
Get image path list in TEST mode
"""
assert infer_img is not None or infer_dir is not None, \
"--image_file or --image_dir should be set"
assert infer_img is None or os.path.isfile(infer_img), \
"{} is not a file".format(infer_img)
assert infer_dir is None or os.path.isdir(infer_dir), \
"{} is not a directory".format(infer_dir)
# infer_img has a higher priority
if infer_img and os.path.isfile(infer_img):
return [infer_img]
images = set()
infer_dir = os.path.abspath(infer_dir)
assert os.path.isdir(infer_dir), \
"infer_dir {} is not a directory".format(infer_dir)
exts = ['jpg', 'jpeg', 'png', 'bmp']
exts += [ext.upper() for ext in exts]
for ext in exts:
images.update(glob.glob('{}/*.{}'.format(infer_dir, ext)))
images = list(images)
assert len(images) > 0, "no image found in {}".format(infer_dir)
print("Found {} inference images in total.".format(len(images)))
return images
class PredictConfig(object):
"""set config of preprocess, postprocess and visualize
Args:
infer_config (str): path of infer_cfg.yml
"""
def __init__(self, infer_config):
# parsing Yaml config for Preprocess
with open(infer_config) as f:
yml_conf = yaml.safe_load(f)
self.check_model(yml_conf)
self.arch = yml_conf['arch']
self.preprocess_infos = yml_conf['Preprocess']
self.min_subgraph_size = yml_conf['min_subgraph_size']
self.label_list = yml_conf['label_list']
self.use_dynamic_shape = yml_conf['use_dynamic_shape']
self.draw_threshold = yml_conf.get("draw_threshold", 0.5)
self.mask = yml_conf.get("mask", False)
self.tracker = yml_conf.get("tracker", None)
self.nms = yml_conf.get("NMS", None)
self.fpn_stride = yml_conf.get("fpn_stride", None)
# 预定义颜色池
color_pool = [(0, 255, 0), (255, 0, 0), (0, 0, 255), (255, 255, 0), (0, 255, 255)]
# 根据label_list动态生成颜色映射
self.colors = {label: color_pool[i % len(color_pool)] for i, label in enumerate(self.label_list)}
if self.arch == 'RCNN' and yml_conf.get('export_onnx', False):
print(
'The RCNN export model is used for ONNX and it only supports batch_size = 1'
)
self.print_config()
def check_model(self, yml_conf):
"""
Raises:
ValueError: loaded model not in supported model type
"""
for support_model in SUPPORT_MODELS:
if support_model in yml_conf['arch']:
return True
raise ValueError("Unsupported arch: {}, expect {}".format(yml_conf[
'arch'], SUPPORT_MODELS))
def print_config(self):
print('----------- Model Configuration -----------')
print('%s: %s' % ('Model Arch', self.arch))
print('%s: ' % ('Transform Order'))
for op_info in self.preprocess_infos:
print('--%s: %s' % ('transform op', op_info['type']))
print('--------------------------------------------')
def draw_bbox(image, outputs, infer_config):
for output in outputs:
cls_id, score, xmin, ymin, xmax, ymax = output
if score > infer_config.draw_threshold:
# 获取类别名
label = infer_config.label_list[int(cls_id)]
# 根据类别名获取颜色
color = infer_config.colors[label]
cv2.rectangle(image, (int(xmin), int(ymin)), (int(xmax), int(ymax)), color, 2)
cv2.putText(image, "{}: {:.2f}".format(label, score),
(int(xmin), int(ymin - 5)), cv2.FONT_HERSHEY_SIMPLEX, 0.5, color, 2)
return image
def predict_image(infer_config, predictor, img_list):
# load preprocess transforms
transforms = Compose(infer_config.preprocess_infos)
errImgList = []
# Check and create subimg_save_dir if not exist
subimg_save_dir = os.path.join(FLAGS.imgsave_dir, 'subimages')
os.makedirs(subimg_save_dir, exist_ok=True)
# predict image
for img_path in tqdm(img_list):
img = cv2.imread(img_path)
if img is None:
print(f"Warning: Could not read image {img_path}. Skipping...")
errImgList.append(img_path)
continue
inputs = transforms(img_path)
inputs_name = [var.name for var in predictor.get_inputs()]
inputs = {k: inputs[k][None, ] for k in inputs_name}
outputs = predictor.run(output_names=None, input_feed=inputs)
print("ONNXRuntime predict: ")
if infer_config.arch in ["HRNet"]:
print(np.array(outputs[0]))
else:
bboxes = np.array(outputs[0])
for bbox in bboxes:
if bbox[0] > -1 and bbox[1] > infer_config.draw_threshold:
print(f"{int(bbox[0])} {bbox[1]} "
f"{bbox[2]} {bbox[3]} {bbox[4]} {bbox[5]}")
# Save the subimages (crop from the original image)
subimg_counter = 1
for output in np.array(outputs[0]):
cls_id, score, xmin, ymin, xmax, ymax = output
if score > infer_config.draw_threshold:
label = infer_config.label_list[int(cls_id)]
subimg = img[int(ymin):int(ymax), int(xmin):int(xmax)]
subimg_filename = f"{os.path.splitext(os.path.basename(img_path))[0]}_{label}_{xmin:.2f}_{ymin:.2f}_{xmax:.2f}_{ymax:.2f}.jpg"
subimg_path = os.path.join(subimg_save_dir, subimg_filename)
cv2.imwrite(subimg_path, subimg)
subimg_counter += 1
# Draw bounding boxes and save the image with bounding boxes
img_with_bbox = draw_bbox(img, np.array(outputs[0]), infer_config)
output_dir = FLAGS.imgsave_dir
os.makedirs(output_dir, exist_ok=True)
output_file = os.path.join(output_dir, "output_" + os.path.basename(img_path))
cv2.imwrite(output_file, img_with_bbox)
print("ErrorImgs:")
print(errImgList)
if __name__ == '__main__':
FLAGS = parser.parse_args()
# load image list
img_list = get_test_images(FLAGS.image_dir, FLAGS.image_file)
# load predictor
predictor = InferenceSession(FLAGS.onnx_file)
# load infer config
infer_config = PredictConfig(FLAGS.infer_cfg)
predict_image(infer_config, predictor, img_list)

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mode: paddle
draw_threshold: 0.5
metric: COCO
use_dynamic_shape: false
arch: DETR
min_subgraph_size: 3
Preprocess:
- interp: 2
keep_ratio: false
target_size:
- 640
- 640
type: Resize
- mean:
- 0.0
- 0.0
- 0.0
norm_type: none
std:
- 1.0
- 1.0
- 1.0
type: NormalizeImage
- type: Permute
label_list:
- isolated
- embedding

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import numpy as np
import cv2
import copy
def decode_image(img_path):
with open(img_path, 'rb') as f:
im_read = f.read()
data = np.frombuffer(im_read, dtype='uint8')
im = cv2.imdecode(data, 1) # BGR mode, but need RGB mode
im = cv2.cvtColor(im, cv2.COLOR_BGR2RGB)
img_info = {
"im_shape": np.array(
im.shape[:2], dtype=np.float32),
"scale_factor": np.array(
[1., 1.], dtype=np.float32)
}
return im, img_info
class Resize(object):
"""resize image by target_size and max_size
Args:
target_size (int): the target size of image
keep_ratio (bool): whether keep_ratio or not, default true
interp (int): method of resize
"""
def __init__(self, target_size, keep_ratio=True, interp=cv2.INTER_LINEAR):
if isinstance(target_size, int):
target_size = [target_size, target_size]
self.target_size = target_size
self.keep_ratio = keep_ratio
self.interp = interp
def __call__(self, im, im_info):
"""
Args:
im (np.ndarray): image (np.ndarray)
im_info (dict): info of image
Returns:
im (np.ndarray): processed image (np.ndarray)
im_info (dict): info of processed image
"""
assert len(self.target_size) == 2
assert self.target_size[0] > 0 and self.target_size[1] > 0
im_channel = im.shape[2]
im_scale_y, im_scale_x = self.generate_scale(im)
im = cv2.resize(
im,
None,
None,
fx=im_scale_x,
fy=im_scale_y,
interpolation=self.interp)
im_info['im_shape'] = np.array(im.shape[:2]).astype('float32')
im_info['scale_factor'] = np.array(
[im_scale_y, im_scale_x]).astype('float32')
return im, im_info
def generate_scale(self, im):
"""
Args:
im (np.ndarray): image (np.ndarray)
Returns:
im_scale_x: the resize ratio of X
im_scale_y: the resize ratio of Y
"""
origin_shape = im.shape[:2]
im_c = im.shape[2]
if self.keep_ratio:
im_size_min = np.min(origin_shape)
im_size_max = np.max(origin_shape)
target_size_min = np.min(self.target_size)
target_size_max = np.max(self.target_size)
im_scale = float(target_size_min) / float(im_size_min)
if np.round(im_scale * im_size_max) > target_size_max:
im_scale = float(target_size_max) / float(im_size_max)
im_scale_x = im_scale
im_scale_y = im_scale
else:
resize_h, resize_w = self.target_size
im_scale_y = resize_h / float(origin_shape[0])
im_scale_x = resize_w / float(origin_shape[1])
return im_scale_y, im_scale_x
class NormalizeImage(object):
"""normalize image
Args:
mean (list): im - mean
std (list): im / std
is_scale (bool): whether need im / 255
norm_type (str): type in ['mean_std', 'none']
"""
def __init__(self, mean, std, is_scale=True, norm_type='mean_std'):
self.mean = mean
self.std = std
self.is_scale = is_scale
self.norm_type = norm_type
def __call__(self, im, im_info):
"""
Args:
im (np.ndarray): image (np.ndarray)
im_info (dict): info of image
Returns:
im (np.ndarray): processed image (np.ndarray)
im_info (dict): info of processed image
"""
im = im.astype(np.float32, copy=False)
if self.is_scale:
scale = 1.0 / 255.0
im *= scale
if self.norm_type == 'mean_std':
mean = np.array(self.mean)[np.newaxis, np.newaxis, :]
std = np.array(self.std)[np.newaxis, np.newaxis, :]
im -= mean
im /= std
return im, im_info
class Permute(object):
"""permute image
Args:
to_bgr (bool): whether convert RGB to BGR
channel_first (bool): whether convert HWC to CHW
"""
def __init__(self, ):
super(Permute, self).__init__()
def __call__(self, im, im_info):
"""
Args:
im (np.ndarray): image (np.ndarray)
im_info (dict): info of image
Returns:
im (np.ndarray): processed image (np.ndarray)
im_info (dict): info of processed image
"""
im = im.transpose((2, 0, 1)).copy()
return im, im_info
class PadStride(object):
""" padding image for model with FPN, instead PadBatch(pad_to_stride) in original config
Args:
stride (bool): model with FPN need image shape % stride == 0
"""
def __init__(self, stride=0):
self.coarsest_stride = stride
def __call__(self, im, im_info):
"""
Args:
im (np.ndarray): image (np.ndarray)
im_info (dict): info of image
Returns:
im (np.ndarray): processed image (np.ndarray)
im_info (dict): info of processed image
"""
coarsest_stride = self.coarsest_stride
if coarsest_stride <= 0:
return im, im_info
im_c, im_h, im_w = im.shape
pad_h = int(np.ceil(float(im_h) / coarsest_stride) * coarsest_stride)
pad_w = int(np.ceil(float(im_w) / coarsest_stride) * coarsest_stride)
padding_im = np.zeros((im_c, pad_h, pad_w), dtype=np.float32)
padding_im[:, :im_h, :im_w] = im
return padding_im, im_info
class LetterBoxResize(object):
def __init__(self, target_size):
"""
Resize image to target size, convert normalized xywh to pixel xyxy
format ([x_center, y_center, width, height] -> [x0, y0, x1, y1]).
Args:
target_size (int|list): image target size.
"""
super(LetterBoxResize, self).__init__()
if isinstance(target_size, int):
target_size = [target_size, target_size]
self.target_size = target_size
def letterbox(self, img, height, width, color=(127.5, 127.5, 127.5)):
# letterbox: resize a rectangular image to a padded rectangular
shape = img.shape[:2] # [height, width]
ratio_h = float(height) / shape[0]
ratio_w = float(width) / shape[1]
ratio = min(ratio_h, ratio_w)
new_shape = (round(shape[1] * ratio),
round(shape[0] * ratio)) # [width, height]
padw = (width - new_shape[0]) / 2
padh = (height - new_shape[1]) / 2
top, bottom = round(padh - 0.1), round(padh + 0.1)
left, right = round(padw - 0.1), round(padw + 0.1)
img = cv2.resize(
img, new_shape, interpolation=cv2.INTER_AREA) # resized, no border
img = cv2.copyMakeBorder(
img, top, bottom, left, right, cv2.BORDER_CONSTANT,
value=color) # padded rectangular
return img, ratio, padw, padh
def __call__(self, im, im_info):
"""
Args:
im (np.ndarray): image (np.ndarray)
im_info (dict): info of image
Returns:
im (np.ndarray): processed image (np.ndarray)
im_info (dict): info of processed image
"""
assert len(self.target_size) == 2
assert self.target_size[0] > 0 and self.target_size[1] > 0
height, width = self.target_size
h, w = im.shape[:2]
im, ratio, padw, padh = self.letterbox(im, height=height, width=width)
new_shape = [round(h * ratio), round(w * ratio)]
im_info['im_shape'] = np.array(new_shape, dtype=np.float32)
im_info['scale_factor'] = np.array([ratio, ratio], dtype=np.float32)
return im, im_info
class Pad(object):
def __init__(self, size, fill_value=[114.0, 114.0, 114.0]):
"""
Pad image to a specified size.
Args:
size (list[int]): image target size
fill_value (list[float]): rgb value of pad area, default (114.0, 114.0, 114.0)
"""
super(Pad, self).__init__()
if isinstance(size, int):
size = [size, size]
self.size = size
self.fill_value = fill_value
def __call__(self, im, im_info):
im_h, im_w = im.shape[:2]
h, w = self.size
if h == im_h and w == im_w:
im = im.astype(np.float32)
return im, im_info
canvas = np.ones((h, w, 3), dtype=np.float32)
canvas *= np.array(self.fill_value, dtype=np.float32)
canvas[0:im_h, 0:im_w, :] = im.astype(np.float32)
im = canvas
return im, im_info
def rotate_point(pt, angle_rad):
"""Rotate a point by an angle.
Args:
pt (list[float]): 2 dimensional point to be rotated
angle_rad (float): rotation angle by radian
Returns:
list[float]: Rotated point.
"""
assert len(pt) == 2
sn, cs = np.sin(angle_rad), np.cos(angle_rad)
new_x = pt[0] * cs - pt[1] * sn
new_y = pt[0] * sn + pt[1] * cs
rotated_pt = [new_x, new_y]
return rotated_pt
def _get_3rd_point(a, b):
"""To calculate the affine matrix, three pairs of points are required. This
function is used to get the 3rd point, given 2D points a & b.
The 3rd point is defined by rotating vector `a - b` by 90 degrees
anticlockwise, using b as the rotation center.
Args:
a (np.ndarray): point(x,y)
b (np.ndarray): point(x,y)
Returns:
np.ndarray: The 3rd point.
"""
assert len(a) == 2
assert len(b) == 2
direction = a - b
third_pt = b + np.array([-direction[1], direction[0]], dtype=np.float32)
return third_pt
def get_affine_transform(center,
input_size,
rot,
output_size,
shift=(0., 0.),
inv=False):
"""Get the affine transform matrix, given the center/scale/rot/output_size.
Args:
center (np.ndarray[2, ]): Center of the bounding box (x, y).
scale (np.ndarray[2, ]): Scale of the bounding box
wrt [width, height].
rot (float): Rotation angle (degree).
output_size (np.ndarray[2, ]): Size of the destination heatmaps.
shift (0-100%): Shift translation ratio wrt the width/height.
Default (0., 0.).
inv (bool): Option to inverse the affine transform direction.
(inv=False: src->dst or inv=True: dst->src)
Returns:
np.ndarray: The transform matrix.
"""
assert len(center) == 2
assert len(output_size) == 2
assert len(shift) == 2
if not isinstance(input_size, (np.ndarray, list)):
input_size = np.array([input_size, input_size], dtype=np.float32)
scale_tmp = input_size
shift = np.array(shift)
src_w = scale_tmp[0]
dst_w = output_size[0]
dst_h = output_size[1]
rot_rad = np.pi * rot / 180
src_dir = rotate_point([0., src_w * -0.5], rot_rad)
dst_dir = np.array([0., dst_w * -0.5])
src = np.zeros((3, 2), dtype=np.float32)
src[0, :] = center + scale_tmp * shift
src[1, :] = center + src_dir + scale_tmp * shift
src[2, :] = _get_3rd_point(src[0, :], src[1, :])
dst = np.zeros((3, 2), dtype=np.float32)
dst[0, :] = [dst_w * 0.5, dst_h * 0.5]
dst[1, :] = np.array([dst_w * 0.5, dst_h * 0.5]) + dst_dir
dst[2, :] = _get_3rd_point(dst[0, :], dst[1, :])
if inv:
trans = cv2.getAffineTransform(np.float32(dst), np.float32(src))
else:
trans = cv2.getAffineTransform(np.float32(src), np.float32(dst))
return trans
class WarpAffine(object):
"""Warp affine the image
"""
def __init__(self,
keep_res=False,
pad=31,
input_h=512,
input_w=512,
scale=0.4,
shift=0.1):
self.keep_res = keep_res
self.pad = pad
self.input_h = input_h
self.input_w = input_w
self.scale = scale
self.shift = shift
def __call__(self, im, im_info):
"""
Args:
im (np.ndarray): image (np.ndarray)
im_info (dict): info of image
Returns:
im (np.ndarray): processed image (np.ndarray)
im_info (dict): info of processed image
"""
img = cv2.cvtColor(im, cv2.COLOR_RGB2BGR)
h, w = img.shape[:2]
if self.keep_res:
input_h = (h | self.pad) + 1
input_w = (w | self.pad) + 1
s = np.array([input_w, input_h], dtype=np.float32)
c = np.array([w // 2, h // 2], dtype=np.float32)
else:
s = max(h, w) * 1.0
input_h, input_w = self.input_h, self.input_w
c = np.array([w / 2., h / 2.], dtype=np.float32)
trans_input = get_affine_transform(c, s, 0, [input_w, input_h])
img = cv2.resize(img, (w, h))
inp = cv2.warpAffine(
img, trans_input, (input_w, input_h), flags=cv2.INTER_LINEAR)
return inp, im_info
# keypoint preprocess
def get_warp_matrix(theta, size_input, size_dst, size_target):
"""This code is based on
https://github.com/open-mmlab/mmpose/blob/master/mmpose/core/post_processing/post_transforms.py
Calculate the transformation matrix under the constraint of unbiased.
Paper ref: Huang et al. The Devil is in the Details: Delving into Unbiased
Data Processing for Human Pose Estimation (CVPR 2020).
Args:
theta (float): Rotation angle in degrees.
size_input (np.ndarray): Size of input image [w, h].
size_dst (np.ndarray): Size of output image [w, h].
size_target (np.ndarray): Size of ROI in input plane [w, h].
Returns:
matrix (np.ndarray): A matrix for transformation.
"""
theta = np.deg2rad(theta)
matrix = np.zeros((2, 3), dtype=np.float32)
scale_x = size_dst[0] / size_target[0]
scale_y = size_dst[1] / size_target[1]
matrix[0, 0] = np.cos(theta) * scale_x
matrix[0, 1] = -np.sin(theta) * scale_x
matrix[0, 2] = scale_x * (
-0.5 * size_input[0] * np.cos(theta) + 0.5 * size_input[1] *
np.sin(theta) + 0.5 * size_target[0])
matrix[1, 0] = np.sin(theta) * scale_y
matrix[1, 1] = np.cos(theta) * scale_y
matrix[1, 2] = scale_y * (
-0.5 * size_input[0] * np.sin(theta) - 0.5 * size_input[1] *
np.cos(theta) + 0.5 * size_target[1])
return matrix
class TopDownEvalAffine(object):
"""apply affine transform to image and coords
Args:
trainsize (list): [w, h], the standard size used to train
use_udp (bool): whether to use Unbiased Data Processing.
records(dict): the dict contained the image and coords
Returns:
records (dict): contain the image and coords after tranformed
"""
def __init__(self, trainsize, use_udp=False):
self.trainsize = trainsize
self.use_udp = use_udp
def __call__(self, image, im_info):
rot = 0
imshape = im_info['im_shape'][::-1]
center = im_info['center'] if 'center' in im_info else imshape / 2.
scale = im_info['scale'] if 'scale' in im_info else imshape
if self.use_udp:
trans = get_warp_matrix(
rot, center * 2.0,
[self.trainsize[0] - 1.0, self.trainsize[1] - 1.0], scale)
image = cv2.warpAffine(
image,
trans, (int(self.trainsize[0]), int(self.trainsize[1])),
flags=cv2.INTER_LINEAR)
else:
trans = get_affine_transform(center, scale, rot, self.trainsize)
image = cv2.warpAffine(
image,
trans, (int(self.trainsize[0]), int(self.trainsize[1])),
flags=cv2.INTER_LINEAR)
return image, im_info
class Compose:
def __init__(self, transforms):
self.transforms = []
for op_info in transforms:
new_op_info = op_info.copy()
op_type = new_op_info.pop('type')
self.transforms.append(eval(op_type)(**new_op_info))
def __call__(self, img_path):
img, im_info = decode_image(img_path)
for t in self.transforms:
img, im_info = t(img, im_info)
inputs = copy.deepcopy(im_info)
inputs['image'] = img
return inputs

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src/rec_infer_from_crop_imgs.py Normal file
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import os
import argparse
import cv2 as cv
from pathlib import Path
from utils import to_katex
from models.ocr_model.utils.inference import inference as latex_inference
from models.ocr_model.model.TexTeller import TexTeller
if __name__ == '__main__':
os.chdir(Path(__file__).resolve().parent)
parser = argparse.ArgumentParser()
parser.add_argument(
'-img_dir',
type=str,
default="./subimages",
help='path to the directory containing input images'
)
parser.add_argument(
'-output_dir',
type=str,
default="./results",
help='path to the output directory for storing recognition results'
)
parser.add_argument(
'-cuda',
default=False,
action='store_true',
help='use cuda or not'
)
args = parser.parse_args()
print('Loading model and tokenizer...')
latex_rec_model = TexTeller.from_pretrained()
tokenizer = TexTeller.get_tokenizer()
print('Model and tokenizer loaded.')
# Create the output directory if it doesn't exist
os.makedirs(args.output_dir, exist_ok=True)
# Loop through all images in the input directory
for filename in os.listdir(args.img_dir):
img_path = os.path.join(args.img_dir, filename)
img = cv.imread(img_path)
if img is not None:
print(f'Inference for {filename}...')
res = latex_inference(latex_rec_model, tokenizer, [img], args.cuda)
res = to_katex(res[0])
# Save the recognition result to a text file
output_file = os.path.join(args.output_dir, os.path.splitext(filename)[0] + '.txt')
with open(output_file, 'w') as f:
f.write(res)
print(f'Result saved to {output_file}')
else:
print(f"Warning: Could not read image {img_path}. Skipping...")