def resample_image(input_img,output_img,target_resolutionX,target_resolutionY,method):
"""
resample the input image with specific resolution and resample method
:param input_img: path of input image
:param output_img: path of the output image
:param target_resolutionX: the X resolution of output image
:param target_resolutionY: the Y resolution of output image
:param method: resample method(same as gdal) : nearest,bilinear,cubic,cubicspline,lanczos,average,mode
:return:True if successful, False Otherwise
"""
if io_function.is_file_exist(input_img) is False:
return False
args_list = ['gdalwarp','-r',method,'-tr',str(target_resolutionX),str(target_resolutionY),input_img,output_img]
return basic.exec_command_args_list_one_file(args_list,output_img)
def convert_image_to_gray_auto(output_image, input_image):
"""
convert inputed image to 8bit
Args:
output_image:output image file path
input_image: input imag file path
Returns:output_image if successful, False otherwise
"""
if os.path.isfile(output_image) is True:
basic.outputlogMessage('%s already exist,skip' % output_image)
return output_image
input_image_obj = RSImageclass()
if input_image_obj.open(input_image) is False:
return False
# GDT_Unknown = 0, GDT_Byte = 1, GDT_UInt16 = 2, GDT_Int16 = 3,
# GDT_UInt32 = 4, GDT_Int32 = 5, GDT_Float32 = 6, GDT_Float64 = 7,
# GDT_CInt16 = 8, GDT_CInt32 = 9, GDT_CFloat32 = 10, GDT_CFloat64 = 11,
#GDT_Byte
if input_image_obj.GetGDALDataType() == 1:
# io_function.copy_file_to_dst(input_image,output_image)
output_image = input_image
return output_image
(max_value_list,
min_value_list) = RSImage.get_image_max_min_value(input_image)
if max_value_list is False or min_value_list is False:
return False
input_image_obj = None
# CommandString = 'gdal_translate -r bilinear -ot Byte -scale ' + input_image + ' '+output_image
# return basic.exec_command_string_one_file(CommandString,output_image)
args_list = ['gdal_translate', '-r', 'bilinear', '-ot', 'Byte']
for band_index in range(0, len(max_value_list)):
args_list.append('-b')
args_list.append(str(band_index + 1))
args_list.append('-scale')
args_list.append(str(min_value_list[band_index]))
args_list.append(str(max_value_list[band_index]))
args_list.append(str(1))
args_list.append(str(254))
args_list.append(input_image)
args_list.append(output_image)
return basic.exec_command_args_list_one_file(args_list, output_image)
