vamtoolbox.imagesequence

Module Contents

Classes

ImageConfig
ImageSeq

Functions

loadImageSeq(file_name)
_insertImage(image, image_out, image_config, v_offset, ...)
_arrayInsertImage(image, image_out, image_config)
_invertU(sinogram)
_invertV(sinogram)
_scaleSize(sinogram, scale_factor)
_scaleIntensity(sinogram, intensity_scalar)
_truncateIntensity(sinogram, maximum_intensity)
_rotate(sinogram, angle_deg)

class vamtoolbox.imagesequence.ImageConfig(image_dims, **kwargs)

class vamtoolbox.imagesequence.ImageSeq(image_config, sinogram)

__getstate__()

Helper for pickle.

__setstate__(d)

save(name: str)

save imagesequence.ImageSeq as ‘name.imgseq’

preview()

Preview an animated image sequence

saveAsVideo(save_path: str, rot_vel: float, num_loops: float = 1, mode: str = 'conventional', angle_increment_per_image: float = None, preview: bool = False)

Parameters:

• save_path (str) – filename of output video e.g. “video.mp4”

• rot_vel (float) – rotation velocity (deg/s)

• num_loops (float, optional) – number of times to loop the images in playback. In conventional mode, num_loops is equivalent to the number of rotations because the image set is assumed to span a full rotation.

• mode (str, optional) –

  ‘conventional’ mode: angle_increment_per_image is derived from number of images, assuming the image set span a full rotation.

  Video duration is proportional to num_loops. The argument angle_increment_per_image is ignored in this mode.

  ’prescribed’ mode: angle_increment_per_image is prescribed. Assuming the video plays back the image set exactly once, regardless whether the image set span less or more than one rotation.

  The argument num_loops is ignored in this mode.

• angle_increment_per_image (float, optional) – spacing of images (deg)

• preview (bool, optional) – preview the video while the function exports the video

saveAsImages(save_dir: str, image_prefix: str = 'image', image_type: str = '.png')

vamtoolbox.imagesequence.loadImageSeq(file_name: str)

vamtoolbox.imagesequence._insertImage(image, image_out, image_config, v_offset, **kwargs)

vamtoolbox.imagesequence._arrayInsertImage(image, image_out, image_config)

vamtoolbox.imagesequence._invertU(sinogram)

vamtoolbox.imagesequence._invertV(sinogram)

vamtoolbox.imagesequence._scaleSize(sinogram, scale_factor)

vamtoolbox.imagesequence._scaleIntensity(sinogram, intensity_scalar)

vamtoolbox.imagesequence._truncateIntensity(sinogram, maximum_intensity)

vamtoolbox.imagesequence._rotate(sinogram, angle_deg)