[Cherry-pick] Cherry-pick from release/2.6 (#11092)

* Update recognition_en.md (#10059)

ic15_dict.txt only have 36 digits

* Update ocr_rec.h (#9469)

It is enough to include preprocess_op.h, we do not need to include ocr_cls.h.

* 补充num_classes注释说明 (#10073)

ser_vi_layoutxlm_xfund_zh.yml中的Architecture.Backbone.num_classes所赋值会设置给Loss.num_classes，
由于采用BIO标注，假设字典中包含n个字段（包含other）时，则类别数为2n-1;假设字典中包含n个字段（不含other）时，则类别数为2n+1。

* Update algorithm_overview_en.md (#9747)

Fix links to super-resolution algorithm docs

* 改进文档`deploy/hubserving/readme.md`和`doc/doc_ch/models_list.md` (#9110)

* Update readme.md

* Update readme.md

* Update readme.md

* Update models_list.md

* trim trailling spaces @ `deploy/hubserving/readme_en.md`

* `s/shell/bash/` @ `deploy/hubserving/readme_en.md`

* Update `deploy/hubserving/readme_en.md` to sync with `deploy/hubserving/readme.md`

* Update deploy/hubserving/readme_en.md to sync with `deploy/hubserving/readme.md`

* Update deploy/hubserving/readme_en.md to sync with `deploy/hubserving/readme.md`

* Update `doc/doc_en/models_list_en.md` to sync with `doc/doc_ch/models_list_en.md`

* using Grammarly to weak `deploy/hubserving/readme_en.md`

* using Grammarly to tweak `doc/doc_en/models_list_en.md`

* `ocr_system` module will return with values of field `confidence`

* Update README_CN.md

* 修复测试服务中图片转Base64的引用地址错误。 (#8334)

* Update application.md

* [Doc] Fix 404 link.  (#10318)

* Update PP-OCRv3_det_train.md

* Update knowledge_distillation.md

* Update config.md

* Fix fitz camelCase deprecation and .PDF not being recognized as pdf file (#10181)

* Fix fitz camelCase deprecation and .PDF not being recognized as pdf file

* refactor get_image_file_list function

* Update customize.md (#10325)

* Update FAQ.md (#10345)

* Update FAQ.md (#10349)

* Don't break overall processing on a bad image (#10216)

* Add preprocessing common to OCR tasks (#10217)

Add preprocessing to options

* [MLU] add mlu device for infer (#10249)

* Create newfeature.md

* Update newfeature.md

* remove unused imported module, so can avoid PyInstaller packaged binary's start-time not found module error. (#10502)

* CV套件建设专项活动 - 文字识别返回单字识别坐标 (#10515)

* modification of return word box

* update_implements

* Update rec_postprocess.py

* Update utility.py

* Update README_ch.md

* revert README_ch.md update

* Fixed Layout recovery README file (#10493)

Co-authored-by: Shubham Chambhare <shubhamchambhare@zoop.one>

* update_doc

* bugfix

---------

Co-authored-by: ChuongLoc <89434232+ChuongLoc@users.noreply.github.com>
Co-authored-by: Wang Xin <xinwang614@gmail.com>
Co-authored-by: tanjh <dtdhinjapan@gmail.com>
Co-authored-by: Louis Maddox <lmmx@users.noreply.github.com>
Co-authored-by: n0099 <n@n0099.net>
Co-authored-by: zhenliang li <37922155+shouyong@users.noreply.github.com>
Co-authored-by: itasli <ilyas.tasli@outlook.fr>
Co-authored-by: UserUnknownFactor <63057995+UserUnknownFactor@users.noreply.github.com>
Co-authored-by: PeiyuLau <135964669+PeiyuLau@users.noreply.github.com>
Co-authored-by: kerneltravel <kjpioo2006@gmail.com>
Co-authored-by: ToddBear <43341135+ToddBear@users.noreply.github.com>
Co-authored-by: Ligoml <39876205+Ligoml@users.noreply.github.com>
Co-authored-by: Shubham Chambhare <59397280+Shubham654@users.noreply.github.com>
Co-authored-by: Shubham Chambhare <shubhamchambhare@zoop.one>
Co-authored-by: andyj <87074272+andyjpaddle@users.noreply.github.com>

ppocr/data/imaug/ct_process.py

@@ -14,18 +14,16 @@
 
 import os
 import cv2
+import paddle
 import random
 import pyclipper
-import paddle
-
 import numpy as np
-from ppocr.utils.utility import check_install
-
-import scipy.io as scio
-
 from PIL import Image
+
 import paddle.vision.transforms as transforms
 
+from ppocr.utils.utility import check_install
+
 
 class RandomScale():
     def __init__(self, short_size=640, **kwargs):