def draw_rectangle(image_fname, fill_color, stroke_color, stroke_width, position, end_position, output_fname=None):
"""Draw a rectangle on a given image.
Args:
image_fname: the image to draw on
fill_color (str): the imagemagick color to use for filling
stroke_color (str): the imagemagick color for the border
stroke_width (int): the width fo the stroke
position (tuple): the x,y position of the top-left of the rectangle
end_position (tuple): the x,y end position of the rectangle to draw
output_fname: the output image, if not set it defaults to the input image
"""
if not bash_function_exists('convert'):
raise RuntimeError('The function convert does not exists, please install ImageMagick or some similar tool.')
output_fname = output_fname or image_fname
command = ['convert', '-quality', '100', '-fill', fill_color, '-stroke', stroke_color,
'-strokewidth', str(stroke_width),
'-draw', 'rectangle ' + ','.join(map(str, position)) + ' ' + ','.join(map(str, end_position)),
image_fname, output_fname]
run_command(command)
return image_fname
def get_image_size(image_fname):
"""Get the size of the given image.
Args:
image_fname (str): the image we want to get the width and height of
Returns:
tuple: width, height of the given image
"""
if not bash_function_exists('identify'):
raise RuntimeError('The function convert does not exists, please install ImageMagick or some similar tool.')
value = run_command(['identify', '-format', '%[fx:w]x%[fx:h]', image_fname]).decode("utf-8")
return list(map(int, value.split('x')))
def concatenate_images(output_fname, image_list):
"""Append all the given files to each other in the order given.
Args:
output_fname (str): the output filename
image_list (list of str): the filenames of the images to append
"""
if not bash_function_exists('convert'):
raise RuntimeError('The function convert does not exists, please install ImageMagick or some similar tool.')
ensure_dir_exists(output_fname)
command = ['convert', '-append']
command.extend(image_list)
command.append(output_fname)
run_command(command)
def trim_image(image_fname, output_fname=None):
"""Trim the given images.
Args:
image_fname: the image to trim
output_fname: the output image, if not set it defaults to the input image
Returns:
str: the name of the output image
"""
if not bash_function_exists('convert'):
raise RuntimeError('The function convert does not exists, please install ImageMagick or some similar tool.')
output_fname = output_fname or image_fname
run_command(['convert', '-trim', image_fname, output_fname])
return output_fname
def is_available(self):
return bash_function_exists('fluidsynth')
def is_available(self):
return bash_function_exists(self.command_name)
def is_available(self):
return bash_function_exists('timidity')
def is_available(self):
return bash_function_exists('fluidsynth')
def is_available(self):
return bash_function_exists(self.command_name)
def is_available(self):
return bash_function_exists('timidity')
