#?-*-?coding:?utf-8?-*-
“““
Created?on?Sun?Jun?21?22:31:24?2020

@author:?Administrator
“““

import?os
import?glob
import?h5py
import?random
import?matplotlib.pyplot?as?plt

from?scipy.misc?import?imread
from?PIL?import?Image??#?for?loading?images?as?YCbCr?format
import?scipy.misc
import?scipy.ndimage
import?numpy?as?np
import?scipy.misc?as?smi
import?tensorflow?as?tf

try:
??xrange
except:
??xrange?=?range


def?rgb2ycbcr（img?only_y=True）:??#自己重新寫的rgb2ycbcr函數以求對應到matlab的rgb2ycbcr函數
????‘‘‘same?as?matlab?rgb2ycbcr
????only_y:?only?return?Y?channel
????Input:
????????uint8?[0?255]
????????float?[0?1]
????‘‘‘
????in_img_type?=?img.dtype
????img.astype（np.float32）
????if?in_img_type?!=?np.uint8:
????????img?*=?255.
????#?convert
????if?only_y:
????????rlt?=?np.dot（img?[65.481?128.553?24.966]）?/?255.0?+?16.0
????else:
????????rlt?=?np.matmul（img?[[65.481?-37.797?112.0]?[128.553?-74.203?-93.786]
??????????????????????????????[24.966?112.0?-18.214]]）?/?255.0?+?[16?128?128]
????if?in_img_type?==?np.uint8:
????????rlt?=?rlt.round（）
????else:
????????rlt?/=?255.
????return?rlt.astype（in_img_type）


??
is_train=False??#預處理訓練數據時時為True預處理測試數據時改為False
scale=3;???????#插值規模

#定義一個保存圖片的函數
def?imsave（image?path）:
??return?scipy.misc.imsave（path?image）???

#將數據讀入進來
if??is_train:
????????dataset=“Train“
????????filenames?=?os.listdir（dataset）
????????data_dir?=?os.path.join（os.getcwd（）?dataset）
????????data?=?glob.glob（os.path.join（data_dir?“*.bmp“））
else:
????????dataset=“Test“
????????data_dir?=?os.path.join（os.sep?（os.path.join（os.getcwd（）?dataset））?“Set5“）
????????data?=?glob.glob（os.path.join（data_dir?“*.bmp“））

???
????
if?is_train:
????????image_size=33??#訓練輸入的圖片的大小33*33
????????stride=14??????#
????????label_size=21??#訓練輸入圖片經過訓練變成21*21大小
????????padding?=?abs（image_size?-?label_size）?/?2?#?6像素點的邊緣
????????sub_input_sequence?=?[]
????????sub_label_sequence?=?[]
????????for?i?in?xrange（len（data））:???#xrange產生隨機數且優于range函數
????????
??????????image=imread（data[i]）
??????????image=rgb2ycbcr（image）?#自己寫rgb2ycbcr函數可取
??????????#image=scipy.misc.imread（data[i]?flatten=True?mode=‘YCbCr‘）.astype（np.float）?#提取Y通道
??????????
??????????if?len（image.shape）?==?3:
????????????h?w?_?=?image.shape
????????????h?=?h?-?np.mod（h?scale）
????????????w?=?w?-?np.mod（w?scale）
????????????label_?=?image[0:h?0:w?:]?#長寬進行裁剪，第三維原樣，但這里并沒有變成33*33
??????????else:
????????????h?w?=?image.shape
????????????h?=?h?-?np.mod（h?scale）
????????????w?=?w?-?np.mod（w?scale）
????????????label_?=?image[0:h?0:w]
??????????image?=?image?/?255.
??????????label_?=?label_?/?255.
??????????
??????????#進行兩次插值構造低分辨率圖片
??????????label_1=Image.fromarray（label_）
??????????input_=?label_1.resize（（?w?//?scaleh?//?scale）Image.BICUBIC）
??????????input_=?input_.resize（（wh）?Image.BICUBIC）
??????????input_=np.float64（input_）
??????????
??????????#保存四位小數
??????????label_=np.

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????259??2020-06-27?16:10??srcnn\checkpoint\checkpoint

?????文件??????32517??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5069500.data-00000-of-00001

?????文件????????302??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5069500.index

?????文件??????32517??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5070000.data-00000-of-00001

?????文件????????302??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5070000.index

?????文件??????32517??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5070500.data-00000-of-00001

?????文件????????302??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5070500.index

?????文件??????32517??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5071000.data-00000-of-00001

?????文件????????302??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5071000.index

?????文件??????32517??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5071500.data-00000-of-00001

?????文件????????302??2020-06-27?16:10??srcnn\checkpoint\SRCNN-5071500.index

?????文件????1249664??2020-06-25?22:34??srcnn\h5\test.h5

?????文件??267862208??2020-06-25?22:31??srcnn\h5\train.h5

?????文件????????758??2020-06-25?22:50??srcnn\readme.txt

?????文件??????34895??2020-06-25?22:34??srcnn\sample\input_image.png

?????文件??????43850??2020-06-25?22:34??srcnn\sample\label_image.png

?????文件??????35519??2020-06-27?16:11??srcnn\sample\test_image.png

?????文件???????7948??2020-06-25?22:34??srcnn\step1-pre.py

?????文件???????4093??2020-06-25?22:40??srcnn\step2-train.py

?????文件???????3253??2020-08-26?11:35??srcnn\step3-test.py

?????文件?????720054??2015-03-17?01:58??srcnn\Test\Set14\baboon.bmp

?????文件????1244214??2015-03-17?01:58??srcnn\Test\Set14\barbara.bmp

?????文件?????263222??2015-03-17?01:58??srcnn\Test\Set14\bridge.bmp

?????文件?????304182??2015-03-17?01:58??srcnn\Test\Set14\coastguard.bmp

?????文件?????271526??2015-03-17?01:58??srcnn\Test\Set14\comic.bmp

?????文件?????228584??2015-03-17?01:58??srcnn\Test\Set14\face.bmp

?????文件?????543054??2015-03-17?01:58??srcnn\Test\Set14\flowers.bmp

?????文件?????304182??2015-03-17?01:58??srcnn\Test\Set14\foreman.bmp

?????文件?????786486??2015-03-17?01:58??srcnn\Test\Set14\lenna.bmp

?????文件?????786486??2015-03-17?01:58??srcnn\Test\Set14\man.bmp

............此處省略107個文件信息