Python resizeimage.resize_cover方法代码示例

# 需要导入模块: from resizeimage import resizeimage [as 别名]
# 或者: from resizeimage.resizeimage import resize_cover [as 别名]
def resize_and_crop(image_address, output_address, f_widht, f_height):
    """
    Function for resizing and cropping of single image.
    The image has to be bigger than the desired size.
    If smaller in any dimension, the image will be discarded
    
    Args:
        image_address (string): Image to be resized
        output_address (string): Final destination of the resized image
        f_widht (int): Final desired widht in pixels
        f_height (int): Final desired height in pixels
        
    Returns:
        Nothing
    """
    with open(image_address, 'r+b') as f:
        with Image.open(f) as image:
            widht, height = image.size
            if(widht >= f_widht and height >= f_height):
                cover = resizeimage.resize_cover(image, [f_widht, f_height])
                cover.save(output_address, image.format)
            else:
                print("Image too small to be resized") 

# 需要导入模块: from resizeimage import resizeimage [as 别名]
# 或者: from resizeimage.resizeimage import resize_cover [as 别名]
def resize(path_to_image, width, height):
        """Resize the image and save it again.
        :param path_to_image: os.path
        :param width: int
        :param height: int
        :return: None
        """

        fd_img = open(path_to_image, 'rb')
        img = Image.open(fd_img)
        img = resizeimage.resize_cover(img, [int(width), int(height)])
        img.save(path_to_image, img.format)
        fd_img.close() 

# 需要导入模块: from resizeimage import resizeimage [as 别名]
# 或者: from resizeimage.resizeimage import resize_cover [as 别名]
def _resize_image(self, path, output_path=None, size=[200, 200]):
        """Thumbnail max size allowed: 200x200"""

        # TODO: maybe move to someplace called utility or helper
        if not output_path:
            output_path = path
        with open(path, "rb") as f:
            with Image.open(f) as image:
                cover = resizeimage.resize_cover(image, size)
                cover.save(output_path, image.format)
        return output_path 

# 需要导入模块: from resizeimage import resizeimage [as 别名]
# 或者: from resizeimage.resizeimage import resize_cover [as 别名]
def _rotate_and_scale_image(self, file, image_target_width=154, image_target_height=111,
                                image_quality_factor=20, image_rotate=True, image_export=False):

        with Image.open(file) as image:
            if image_rotate and image.width < image.height:
                image = image.rotate(90, expand=True)
                logger.debug('rotating image by 90 degrees')

            if image.width < image_quality_factor * image_target_width \
                    or image.height < image_quality_factor * image_target_height:
                factor_width = math.floor(image.width / image_target_width)
                factor_height = math.floor(image.height / image_target_height)
                factor = min([factor_height, factor_width])

                logger.debug('image is smaller than default for resize/fill. '
                             'using scale factor {} instead of {}'.format(factor, image_quality_factor))
                image_quality_factor = factor

            width = image_target_width * image_quality_factor
            height = image_target_height * image_quality_factor
            logger.debug('resizing image from {}x{} to {}x{}'
                         .format(image.width, image.height, width, height))

            cover = resizeimage.resize_cover(image, [width, height], validate=True)
            with BytesIO() as f:
                cover.save(f, 'PNG')
                scaled = f.getvalue()

            if image_export:
                name = strftime("postcard_creator_export_%Y-%m-%d_%H-%M-%S.jpg", gmtime())
                path = os.path.join(os.getcwd(), name)
                logger.info('exporting image to {} (image_export=True)'.format(path))
                cover.save(path)

        return scaled


# expose Token class in this module for backwards compatibility 

# 需要导入模块: from resizeimage import resizeimage [as 别名]
# 或者: from resizeimage.resizeimage import resize_cover [as 别名]
def test_resize_cover(self):
        """
        Test that the image resized with resize_cover
        has the expected size
        """
        with self._open_test_image() as img:
            img = resizeimage.resize_cover(img, [200, 100])
            filename = self._tmp_filename('resize-cover.jpeg')
            img.save(filename, img.format)
            with Image.open(filename) as image:
                self.assertEqual(image.size, (200, 100)) 

# 需要导入模块: from resizeimage import resizeimage [as 别名]
# 或者: from resizeimage.resizeimage import resize_cover [as 别名]
def test_can_not_resize_cover_larger_size(self):
        """
        Test that resizing an image with resize_cover
        to a size larger than the original raises an error
        """
        with self._open_test_image() as img:
            with self.assertRaises(ImageSizeError):
                resizeimage.resize_cover(img, (801, 534)) 

# 需要导入模块: from resizeimage import resizeimage [as 别名]
# 或者: from resizeimage.resizeimage import resize_cover [as 别名]
def find_all_files(min_pixels, origin_folder, target_folder):
    """
    Function that searches all subfolders of given folder.
    This function assumes that all files in that folder are image files
    If this is not the case errors will occur as no check is carried out.

    For each file, it checks that both of its dimensions are bigger than 
    min_pixels. If so, it will rescale and crop the image to
    min_pixels*min_pixels and save the file to the destination given
    in the top of this file
    
    There is a testing feature count, which allows only few subfolders 
    to be searched, so that this function can be tested
    
    Args:
        min_pixels (int): The final image will be square of this number of pixels 
        origin_folder (string): Path to a folder, which will be searched for
                any images in it or any of its subdirectories
        target_folder (string): path to folder to which the resized images
                should be saved to. This folder will have flat structure.
        
    Returns: 
        root (string): Returns the root address of the original folder
    """
    #count = 0
    for root, dirs, files in os.walk(origin_folder):
        vis_files = [f for f in files if not f[0] == '.']
        copy = True
        """
        copy = False
               
        if(root.endswith("indoor")):
            print("I am indoor")
            target_folder = indoor_address
            copy = True
       
        if(root.endswith("outdoor")):
            print("I am outdoor")
            target_folder = outdoor_address
            copy = True
        """
        if(len(vis_files)>0 and copy):
            for image_name in vis_files:
                #print(root, dirs, image_name)
                with Image.open(root+"/"+ image_name) as tested_image:
                        width, height = tested_image.size
                        if(width>=min_pixels and height>= min_pixels):                        
                            cover = resizeimage.resize_cover(tested_image, [min_pixels, min_pixels])
                            cover.convert('RGB').save(target_folder+image_name, 'JPEG')
       
    return root