isimple package

Subpackages

• isimple.core package
  • Submodules
  • isimple.core.backend module
  • isimple.core.common module
  • isimple.core.config module
  • isimple.core.endpoints module
  • isimple.core.features module
  • isimple.core.log module
  • isimple.core.schema module
  • isimple.core.util module
  • Module contents
• isimple.maths package
  • Submodules
  • isimple.maths.images module
  • Module contents

Submodules

isimple.app module

isimple.db module

isimple.server module

isimple.video module

exception isimple.video.VideoFileTypeError(*args)

Bases: isimple.core.backend.BackendSetupError

msg = 'Unrecognized video file type'

class isimple.video.VideoFileHandler(video_path, config: isimple.core.config.VideoFileHandlerConfig = None)

Bases: isimple.core.backend.CachingBackendInstance

Interface to video files ~ OpenCV

set_requested_frames(requested_frames: List[int]) → None

Add a list of requested frames. Used to determine which frames to cache in the background and in _resolve_frame

get_total_frames() → int

get_time(frame_number: int) → float

get_fps() → float

read_frame(frame_number: int) → Optional[numpy.ndarray]

Wrapper for _read_frame. Enables caching (if in a caching context!) and provides the video file’s path to determine the cache key.

class isimple.video.TransformInterface

Bases: abc.ABC

default = array([[1., 0., 0.], [0., 1., 0.], [0., 0., 1.]])

validate(transform: numpy.ndarray) → bool

estimate(coordinates: list, shape: tuple) → numpy.ndarray

transform(img: numpy.ndarray, transform: numpy.ndarray, shape: tuple) → numpy.ndarray

class isimple.video.PerspectiveTransform

Bases: isimple.video.TransformInterface

validate(transform: numpy.ndarray) → bool

estimate(coordinates: list, shape: tuple) → dict

transform(img: numpy.ndarray, transform: numpy.ndarray, shape: tuple) → numpy.ndarray

class isimple.video.TransformHandler(shape, config: isimple.core.config.TransformHandlerConfig)

Bases: isimple.core.backend.BackendInstance, isimple.core.backend.Handler

Handles coordinate transforms.

set_implementation(implementation: str) → str

set(transform: numpy.ndarray)

Set the transform matrix

estimate(coordinates: list) → None

Estimate the transform matrix from a set of coordinates. Coordinates should correspond to the corners of the outline of the design, ordered from the bottom left to the top right.

get_coordinates() → Optional[list]

inverse(img: numpy.ndarray) → numpy.ndarray

matrix

class isimple.video.FilterInterface

Bases: abc.ABC

Handles pixel filtering operations

set_filter(filter, color: isimple.core.config.HsvColor)

mean_color(filter) → isimple.core.config.HsvColor

filter(image: numpy.ndarray, filter) → numpy.ndarray

class isimple.video.HsvRangeFilter

Bases: isimple.video.FilterInterface

Filters by a range of hues ~ HSV representation

validate(filter)

set_filter(filter: isimple.core.config.HsvRangeFilterConfig, color: isimple.core.config.HsvColor) → isimple.core.config.HsvRangeFilterConfig

mean_color(filter: isimple.core.config.HsvRangeFilterConfig) → isimple.core.config.HsvColor

filter(img: numpy.ndarray, filter: isimple.core.config.HsvRangeFilterConfig) → numpy.ndarray

class isimple.video.FilterHandler(config: isimple.core.config.FilterHandlerConfig = None)

Bases: isimple.core.backend.BackendInstance, isimple.core.backend.Handler

mean_color() → isimple.core.config.HsvColor

set_filter(filter: isimple.core.config.FilterConfig, color: isimple.core.config.HsvColor) → isimple.core.config.FilterConfig

get_filter() → isimple.core.config.FilterConfig

set_implementation(implementation: str) → str

class isimple.video.Mask(mask: numpy.ndarray, name: str, config: isimple.core.config.MaskConfig = None, filter: isimple.video.FilterHandler = None, dpi: float = None, h: float = None)

Bases: isimple.core.backend.BackendInstance

Handles masks in the context of a video file

rows

cols

name

h

dpi

class isimple.video.DesignFileHandler(path: str, h: float, config: isimple.core.config.DesignFileHandlerConfig = None, mask_config: Tuple[isimple.core.config.MaskConfig, ...] = None)

Bases: isimple.core.backend.CachingBackendInstance

peel_design(design_path) → numpy.ndarray

read_masks(design_path) → Tuple[List[numpy.ndarray], List[str]]

shape

get_dpi() → float

overlay() → numpy.ndarray

overlay_frame(frame: numpy.ndarray) → numpy.ndarray

masks

get_mask_names() → tuple

isimple.video.frame_to_none(frame: numpy.ndarray) → None

class isimple.video.MaskFilterFunction(mask: isimple.video.Mask, filter: isimple.video.FilterHandler = None)

Bases: isimple.core.features.Feature

value(frame) → Any

Compute the value of the Feature instance for a given frame

state(frame: numpy.ndarray, state: numpy.ndarray = None) → numpy.ndarray

Generate a state image (BGR)

name

Return the name of the feature

class isimple.video.PixelSum(mask: isimple.video.Mask, filter: isimple.video.FilterHandler = None)

Bases: isimple.video.MaskFilterFunction

class isimple.video.Volume_uL(mask: isimple.video.Mask, filter: isimple.video.FilterHandler = None)

Bases: isimple.video.MaskFilterFunction

class isimple.video.VideoAnalyzer(config: isimple.core.config.VideoAnalyzerConfig = None)

Bases: isimple.core.backend.BackendManager

Main video handling class * Load frames from video files * Load mask files * Load/save measurement metadata

connect(gui: isimple.core.common.Manager)

configure()

align()

pick(index: int)

get_name() → str

get_h() → float

get_config() → dict

set_config(config: dict) → None

get_transformed_frame(frame_number: int) → numpy.ndarray

get_inverse_transformed_overlay() → numpy.ndarray

get_frame_overlay(frame_number: int) → numpy.ndarray

get_colors() → List[Tuple[isimple.core.config.HsvColor, ...]]

frame_numbers() → Generator[int, None, None]

calculate(frame_number: int, update_callback: Callable)

Return a state image for each FeatureSet

analyze()

load_config(path: str = None)

Load video analysis configuration

save_config(path: str = None)

Save video analysis configuration

save(path: str = None)

Save video analysis results & metadata

class isimple.video.MultiVideoAnalyzer(config: isimple.core.config.BackendManagerConfig = None)

Bases: isimple.core.backend.BackendManager

Module contents