Image preprocess module. #2084

qingqing01 · 2017-05-10T08:49:51Z

在v2 API里实现了一些通用的图像预处理函数，并对CHW, RGB顺序写了一些注释，这个顺序对刚接触的用户来说通常会比较疑惑。

使用opencv-python库.
后续其他同学可以增加更多的处理.

related to #2070 #PaddlePaddle/models#28

… image_v2

luotao1

Some tiny English problems.

luotao1 · 2017-05-10T11:04:55Z

python/paddle/v2/image.py

+    "left_right_flip", "simple_transform", "load_and_transform"
+]
+"""
+This file contains some common interface for image preprocess.


luotao1 · 2017-05-10T11:05:33Z

python/paddle/v2/image.py

+"""
+This file contains some common interface for image preprocess.
+Many users are confused about the image layout. We introduce
+the image layout firstly.


firstly->as follows.

luotao1 · 2017-05-10T11:08:05Z

python/paddle/v2/image.py

+
+- CHW Layout
+  - The abbreviations: C=channel, H=Height, W=Width
+  - The default image layout is HWC opened by cv2 or PIL.


opened->formulated ?

luotao1 · 2017-05-10T11:08:43Z

python/paddle/v2/image.py

+- CHW Layout
+  - The abbreviations: C=channel, H=Height, W=Width
+  - The default image layout is HWC opened by cv2 or PIL.
+    PaddlePaddle only support the image layout with CHW.


only support the CHW layout.

luotao1 · 2017-05-10T11:09:54Z

python/paddle/v2/image.py

+
+- Color format: RGB or BGR
+  OpenCV use BGR color format. PIL use RGB color format. Both
+  formats can be used for training. But it must be noted that,


Note that, the format should be XXX

luotao1 · 2017-05-10T11:10:57Z

python/paddle/v2/image.py

+    """
+    Transpose the input image order. The image layout is HWC format
+    opened by cv2 or PIL. Transposed the input image to CHW layouts
+    by order (2,0,1).


Transpose the input image

luotao1 · 2017-05-10T11:11:24Z

python/paddle/v2/image.py

+
+    :param im: the input image with HWC layout.
+    :type im: ndarray
+    :param size: the cropping size


119行加句号。

luotao1 · 2017-05-10T11:11:40Z

python/paddle/v2/image.py

+
+    :param im: the input image with HWC layout.
+    :type im: ndarray
+    :param size: the cropping size


146行加句号。

luotao1 · 2017-05-10T11:12:11Z

python/paddle/v2/image.py

+
+def simple_transform(im, resize_size, crop_size, is_train, is_color=True):
+    """
+    Simply data argumentation for traing. These operations includes


training笔误。These operations include

luotao1 · 2017-05-10T11:12:39Z

python/paddle/v2/image.py

+                       is_color=True):
+    """
+    Load image from the input file `filename` and transform image for
+    data argumentation. Please refer the `simple_transform` interface


qingqing01

Thanks! @luotao1

qingqing01 · 2017-05-10T11:31:41Z

python/paddle/v2/image.py

+    "left_right_flip", "simple_transform", "load_and_transform"
+]
+"""
+This file contains some common interface for image preprocess.


qingqing01 · 2017-05-10T11:31:46Z

python/paddle/v2/image.py

+"""
+This file contains some common interface for image preprocess.
+Many users are confused about the image layout. We introduce
+the image layout firstly.


qingqing01 · 2017-05-10T11:31:52Z

python/paddle/v2/image.py

+
+- CHW Layout
+  - The abbreviations: C=channel, H=Height, W=Width
+  - The default image layout is HWC opened by cv2 or PIL.


qingqing01 · 2017-05-10T11:31:56Z

python/paddle/v2/image.py

+- CHW Layout
+  - The abbreviations: C=channel, H=Height, W=Width
+  - The default image layout is HWC opened by cv2 or PIL.
+    PaddlePaddle only support the image layout with CHW.


qingqing01 · 2017-05-10T11:32:04Z

python/paddle/v2/image.py

+
+- Color format: RGB or BGR
+  OpenCV use BGR color format. PIL use RGB color format. Both
+  formats can be used for training. But it must be noted that,


qingqing01 · 2017-05-10T11:32:10Z

python/paddle/v2/image.py

+    """
+    Transpose the input image order. The image layout is HWC format
+    opened by cv2 or PIL. Transposed the input image to CHW layouts
+    by order (2,0,1).


qingqing01 · 2017-05-10T11:32:16Z

python/paddle/v2/image.py

+
+    :param im: the input image with HWC layout.
+    :type im: ndarray
+    :param size: the cropping size


qingqing01 · 2017-05-10T11:32:23Z

python/paddle/v2/image.py

+
+    :param im: the input image with HWC layout.
+    :type im: ndarray
+    :param size: the cropping size


qingqing01 · 2017-05-10T11:32:29Z

python/paddle/v2/image.py

+
+def simple_transform(im, resize_size, crop_size, is_train, is_color=True):
+    """
+    Simply data argumentation for traing. These operations includes


qingqing01 · 2017-05-10T11:32:35Z

python/paddle/v2/image.py

+                       is_color=True):
+    """
+    Load image from the input file `filename` and transform image for
+    data argumentation. Please refer the `simple_transform` interface


* fix dide link, test=document * fix dide link, test=document

qingqing01 added 3 commits May 10, 2017 16:10

image preprcoess module

70c30ef

Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle into…

a6ec6c0

… image_v2

Pass unit test

e3fd0d5

qingqing01 requested review from luotao1, chengxiaohua1105, wanghaoshuang and wwhu May 10, 2017 09:01

luotao1 requested changes May 10, 2017

View reviewed changes

refine the annotation.

3513935

qingqing01 commented May 10, 2017

View reviewed changes

luotao1 approved these changes May 11, 2017

View reviewed changes

luotao1 merged commit affd9d2 into PaddlePaddle:develop May 11, 2017

heavengate pushed a commit to heavengate/Paddle that referenced this pull request Aug 16, 2021

[Doc] fix dide link (PaddlePaddle#2084)

8059452

* fix dide link, test=document * fix dide link, test=document

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Image preprocess module. #2084

Image preprocess module. #2084

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Image preprocess module. #2084

Image preprocess module. #2084

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qingqing01 commented May 10, 2017 •

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