return params_dict
## pick reference image files from folder
fileList = next(os.walk(folder_reference))[2]
fileList = [imgFile for imgFile in fileList if ".{0}".format(imgFileExt)==os.path.splitext(imgFile)[1]]
############################################################
## iteration:
############################################################
abort = False
for i in range(num_of_repeat):
for imgFile in fileList:
## initialize renderer wrapper
furRenderer = Misc.FurRenderer()
############################################################
## create temporary folder and copy image file to the folder
############################################################
img_ref_path = "{0}/{1}".format(folder_reference, imgFile)
folder_root = "{0}/{1}_{2}".format(
folder_temp_root,
os.path.splitext(imgFile)[0],
datetime.now().strftime("%Y%m%d_%H%M%S")
)
os.makedirs(folder_root) # root folder to preserve optimization progress
shutil.copy2(img_ref_path, folder_root+"/_ref_image.{0}".format(imgFileExt))
furRenderer.Init(folder_root)
