Imaging Module

Directory List

Calibration	Demos/ImageMatching	Demos/Imager
Demos/Lenses	ImageData	ImageMatching
ImageProcessing	Lenses	Optics
PSFUtils	Utilities

Calibration

CalibrationCube	Create a calibration cube for lens calibration.
CameraCalibration	Calibrates a camera.
CameraCalibrationModel	Computes points in the camera coordinates.

Demos/ImageMatching

ImageProcessing	Demonstrates image processing.
MoonEdgeAndLandmarks	Demonstrates image processing.

Demos/Imager

CCDDemo

Generate a noisy star image in a loop.

Demos/Lenses

DefocusingDemo	Parameter study for defocused Airy point spread function
DoubleGaussLens	Create a double Gauss lens

ImageData

Bennu.jpg	Image of the Bennu asteroid
Box.jpg	A metallic box
CalibrationCube.jpg	Photograph of hardware calibration cube.
CalibrationPattern.jpg	Computer generated calibration picture.
Moon.jpg	Moon image taken from a telescope.
MoonAndStars.jpg	Artificial moon and stars image.
Mug.jpg	Image of a ceramic mug.
SCImage.mat	Spacecraft bus against the Earth background

ImageMatching

BinaryImage	Generate a binary image.
CannyEnhancer	Canny edge detector.
CircleFit	Fit a circle to data.
CornerDetector	Corner detector.
EllipseImageFit	Fit an ellipse to point data.
GaussianDerivative	Generate an image derivative using a Gaussian kernal.
HysteresisThreshold	Hysteresis threshold.
ImageDerivative	Generate an image derivative.
NonMaxSuppression	Non max suppression. Thins the edges.

ImageProcessing

AdaptiveThresholding	Applies and adaptive threshold to an image
CannyEdgeDetector	Applies a mask to do Canny edge detection.
ConvolveImage	Convolves an image with a mask.
GaussianImageFilter	Apply a Gaussian filter and derivative to an image.
GaussianKernal	Gaussian point spread function.
ImageNoise	Generate noise for an image
Imager	Display an image in figure given image data.
IndexedImageToRGB	Converts an indexed image to RGB.
LinearImageFilter	Apply a linear noise filter to an image.
MedianImageFilter	Apply a median noise filter to an image.

Lenses

CookeTriplet.lens	Cooke triplet lens file
DoubleGauss.lens	Double gauss lens file
Harting.lens	Harting lens file
LensDemo.lens	Lens demo file
Simple.lens	Simple lens file

Optics

AiryDefocused	Compute the Airy disk for defocused light.
AiryDiskInPixels	Compute the pixel width of the Airy disk.
AiryResolution	Draw the Airy pattern for a point light source.
AngleOfView	Compute the angle of view. Full-angle, not half-angle.
BlurParameter	Find the blur parameter.
Centroids	Generate centroid distributions.
CircleOfConfusion	Computes the circle of confusion for an optical system.
ConeAreaAndDerivatives	Cone area and derivatives.
CookeTriplet	Computes the output angle from a Cooke Triplet.
DetectorModel	Detector model with photon and electron noise sources and A/D conversion.
DrawLens	Draws lenses from a standard lens table.
DrawMirror	Draws mirrors.
EffFocalLength	Computes the effective focal length using thin lens approximation.
ElectronsToIons	From electrons compute the number density of the ions.
EllipseToS	Convert ellipse parameters to s.
EnergyPhoton	Energy of a photon.
FocalLengthFromAngleOfView	Compute the focal length from angle of view.
FocalPlaneImage	Visualize a focal plane image using a mesh.
FresnelNumber	Compute the Fresnel Number.
ISO	Attentuation factor at an iso number
ISOEquivalent	Ratio of sensitivity to ISO 100
LaserBeamRadius	Laser beam radius.
LaserPower	Laser power.
LensMakerFormula	Compute the focal lengths of lenses.
LightGathering	Computes stellar magnitude visible to a telescope.
LumenToWatt	Outputs lumens/watt.
OpticalAngleError	Errors due to planet measurement related errors.
OpticalMagnification	Computes optical magnification of a telescope.
OpticalRadialDistortion	Computes the measured radius from the true radius
ParabolaToS	Convert parabola parameters to s.
PinholeCamera	Perform pinhole camera transformation on points.
PixelFlux2D	Compute the integrated flux from a pixel in 2D.
PixelSpread	Compute the pixel spread of a collimated light beam.
RMSNoiseImager	Finds the RMS noise of an imager.
RayTraceLens	Ray trace a lens assembly.
RayTraceMirror	Ray trace for mirrors.
RayTransferMatrix	Computes the ray transfer matrix for an optical system.
RayTransferMatrixFromLensFile	Computes the ray transfer matrix from a lens file or table.
ReadLensData	Draws lenses with spherical or flat surfaces.
ReflectionLaw	Apply the vector form of the law of reflection.
SnellsLaw	Apply the vector form of Snell's law of refraction.
SnellsLawCurve	Apply Snell's law of refraction to a curve of the form
StarCentroid	Finds the centroid given intensities on n pixels and their coordinates.
StellarMagnitude	Stellar magnitude for a variety of sources.
StrehlRatio	Compute the Strehl Ratio from defocus and Fresnel number.
TargetInFocalPlane	Project a target into the focal plane.
VM2Photons	Converts apparent visual magnitude to intensity in photons/s/m^2.
VMToPhotons	Converts apparent visual magnitude to photons/s/micron.
ZodiacalLight	Computes zodiacal light due to dust.

PSFUtils

FitPSFToData	Refine the pixel fit numerically using fminsearch.
ImagerPSF	Finds the output of each imager pixel through numerical integration of PSF.
RHSAiryDefocusedPSF	Point Spread Function for the Airy defocused function.
RHSAiryPSF	Point Spread Function for an Airy function.
RHSGaussianPSF	Point Spread Function for multiple Gaussian PSF
RHSMoffatPSF	Point Spread Function for a Moffat function

Utilities

CreateLensTable	Creates a lens table from l.
GradientOperator	Image gradient operators.
PointSpreadFunction2DGaussian	Compute the point spread function for a 2D gaussian.
PoissonNoise	Smear the pixels with poisson noise.
QESilicon	Quantum efficiency of silicon
ReadImage	Read an image.

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