def testJython(imgred, imggreen, imgblue):
width, height = rgb.dimension(0), rgb.dimension(1)
hb = zeros(width * height, 'f')
sb = zeros(width * height, 'f')
bb = zeros(width * height, 'f')
cred = imgred.cursor()
cgreen = imggreen.cursor()
cblue = imgblue.cursor()
i = 0
while cred.hasNext():
r = cred.next().getRealFloat()
g = cgreen.next().getRealFloat()
b = cblue.next().getRealFloat()
cmax = max(r, g, b)
cmin = min(r, g, b)
bb[i] = cmax / 255.0
if 0 != cmax:
sb[i] = (cmax - cmin) / cmax
# Else leave sb[i] at zero
if 0 == sb[i]:
h = 0
else:
span = cmax - cmin
redc = (cmax - r) / span
greenc = (cmax - g) / span
bluec = (cmax - b) / span
if r == cmax:
h = bluec - greenc
elif g == cmax:
h = 2.0 + redc - bluec
else:
h = 4.0 + greenc - redc
h /= 6.0
if h < 0:
h += 1.0
hb[i] = h
i += 1
hh = ArrayImgs.floats(hb, [width, height])
ss = ArrayImgs.floats(sb, [width, height])
bb = ArrayImgs.floats(bb, [width, height])
return Views.stack(hh, ss, bb)
def loadUnsignedShort(filepath, invert=True, CLAHE_params=None):
""" Returns an ImgLib2 ArrayImg """
imp = loadImp(filepath)
if invert:
imp.getProcessor().invert()
if CLAHE_params is not None:
blockRadius, n_bins, slope = CLAHE_params
CLAHE.run(imp, blockRadius, n_bins, slope, None)
return ArrayImgs.unsignedShorts(
imp.getProcessor().getPixels(),
[imp.getWidth(), imp.getHeight()])
def projectMax(img, minC, maxC, reduce_max):
imgA = ArrayImgs.unsignedSorts(
Intervals.dimensionsAsLongArray(imgC))
ImgUtil.copy(
ImgView.wrap(
convert(
Views.collapseReal(
Views.interval(img, minC, maxC)),
reduce_max.newInstance(), imglibtype),
img.factory()), imgA)
return imgA
def readUnsignedBytes(path, dimensions, header=0):
""" Read a file as an ArrayImg of UnsignedShortType """
ra = RandomAccessFile(path, 'r')
try:
if header < 0:
# Interpret from the end: useful for files with variable header lengths
# such as some types of uncompressed TIFF formats
header = ra.length() + header
ra.skipBytes(header)
bytes = zeros(reduce(operator.mul, dimensions), 'b')
ra.read(bytes)
return ArrayImgs.unsignedBytes(bytes, dimensions)
finally:
ra.close()
def populateInstances(instances, synth_imgs, class_index, mins, maxs):
# Populate the training data: create the filter bank for each feature image
# by reading values from the interval defined by mins and maxs
target = ArrayImgs.floats([width, height])
interval = FinalInterval(mins, maxs)
n_samples = Intervals.numElements(interval)
for img in synth_imgs:
vectors = [zeros(len(attributes), 'd') for _ in xrange(n_samples)]
for k, op in enumerate(filterBank(img, sumType=DoubleType())):
imgOp = compute(op).into(target)
for i, v in enumerate(Views.interval(imgOp, interval)):
vectors[i][k] = v.getRealDouble()
for vector in vectors:
vector[-1] = class_index
instances.add(DenseInstance(1.0, vector))
def readFIBSEMdat(path, channel_index=-1, header=1024, magic_number=3555587570):
""" Read a file from Shan Xu's FIBSEM software, where two channels are interleaved.
Assumes channels are stored in 16-bit.
path: the file path to the .dat file.
channel_index: the 0-based index of the channel to parse, or -1 (default) for all.
header: defaults to a length of 1024 bytes
magic_number: defaults to that for version 8 of Shan Xu's .dat image file format.
"""
ra = RandomAccessFile(path, 'r')
try:
# Check the magic number
ra.seek(0)
if ra.readInt() & 0xffffffff != magic_number:
print "Magic number mismatch"
return None
# Read the number of channels
ra.seek(32)
numChannels = ra.readByte() & 0xff # a single byte as unsigned integer
# Parse width and height
ra.seek(100)
width = ra.readInt()
ra.seek(104)
height = ra.readInt()
print numChannels, width, height
# Read the whole interleaved pixel array
ra.seek(header)
bytes = zeros(width * height * 2 * numChannels, 'b') # 2 for 16-bit
ra.read(bytes)
print "read", len(bytes), "bytes" # takes ~2 seconds
# Parse as 16-bit array
sb = ByteBuffer.wrap(bytes).order(ByteOrder.BIG_ENDIAN).asShortBuffer()
shorts = zeros(width * height * numChannels, 'h')
sb.get(shorts)
# Deinterleave channels
# With Weaver: fast
channels = w.deinterleave(shorts, numChannels, channel_index)
# With python array sampling: very slow, and not just from iterating whole array once per channel
# seq = xrange(numChannels) if -1 == channel_index else [channel_index]
#channels = [shorts[i::numChannels] for i in seq]
# With clojure: extremely slow, may be using reflection unexpectedly
#channels = deinterleave.invoke(shorts, numChannels)
print len(channels)
# Shockingly, these values are signed shorts, not unsigned!
return [ArrayImgs.shorts(s, [width, height]) for s in channels]
finally:
ra.close()
def readFloats(path, dimensions, header=0, byte_order=ByteOrder.LITTLE_ENDIAN):
""" Read a file as an ArrayImg of FloatType """
size = reduce(operator.mul, dimensions)
ra = RandomAccessFile(path, 'r')
try:
if header < 0:
# Interpret from the end: useful for files with variable header lengths
# such as some types of uncompressed TIFF formats
header = ra.length() + header
ra.skipBytes(header)
bytes = zeros(size * 4, 'b')
ra.read(bytes)
floats = zeros(size, 'f')
ByteBuffer.wrap(bytes).order(byte_order).asFloatBuffer().get(floats)
return ArrayImgs.floats(floats, dimensions)
finally:
ra.close()
def readUnsignedShorts(path, dimensions, header=0, return_array=False, byte_order=ByteOrder.LITTLE_ENDIAN):
""" Read a file as an ArrayImg of UnsignedShortType """
size = reduce(operator.mul, dimensions)
ra = RandomAccessFile(path, 'r')
try:
if header < 0:
# Interpret from the end: useful for files with variable header lengths
# such as some types of uncompressed TIFF formats
header = ra.length() + header
ra.skipBytes(header)
bytes = zeros(size * 2, 'b')
ra.read(bytes)
shorts = zeros(size, 'h') # h is for short
ByteBuffer.wrap(bytes).order(byte_order).asShortBuffer().get(shorts)
return shorts if return_array else ArrayImgs.unsignedShorts(shorts, dimensions)
finally:
ra.close()
def prepare(index):
# Prepare the img for deconvolution:
# 0. Transform in one step.
# 1. Ensure its pixel values conform to expectations (no zeros inside)
# 2. Copy it into an ArrayImg for faster recurrent retrieval of same pixels
syncPrint("Preparing %s CM0%i for deconvolution" % (tm_dirname, index))
img = klb_loader.get(filepaths[index]) # of UnsignedShortType
imgP = prepareImgForDeconvolution(
img, transforms[index], target_interval) # returns of FloatType
# Copy transformed view into ArrayImg for best performance in deconvolution
imgA = ArrayImgs.floats(Intervals.dimensionsAsLongArray(imgP))
#ImgUtil.copy(ImgView.wrap(imgP, imgA.factory()), imgA)
ImgUtil.copy(imgP, imgA, n_threads / 2) # parallel copying
syncPrint("--Completed preparing %s CM0%i for deconvolution" %
(tm_dirname, index))
imgP = None
img = None
return (index, imgA)
def makeInterpolatedImage(img1, search1, img2, search2, weight):
""" weight: float between 0 and 1 """
img3 = ArrayImgs.unsignedBytes(Intervals.dimensionsAsLongArray(img1))
c1 = img1.cursor()
c2 = img2.cursor()
c3 = img3.cursor()
while c3.hasNext():
t1 = c1.next()
t2 = c2.next()
t3 = c3.next()
sign1 = -1 if 0 == t1.get() else 1
sign2 = -1 if 0 == t2.get() else 1
search1.search(c1)
search2.search(c2)
value1 = sign1 * search1.getDistance() * (1 - weight)
value2 = sign2 * search2.getDistance() * weight
if value1 + value2 > 0:
t3.setOne()
return img3
def oneStep(index=0):
# Combining transforms into one, via a translation to account of the ROI crop
img = klb.readFull(filepaths[index]) # klb_loader.get(filepaths[index])
t1 = cmIsotropicTransforms[index]
t2 = affine3D(
[1, 0, 0, -roi[0][0], 0, 1, 0, -roi[0][1], 0, 0, 1, -roi[0][2]])
t3 = affine3D(fineTransformsPostROICrop[index]).inverse()
aff = AffineTransform3D()
aff.set(t1)
aff.preConcatenate(t2)
aff.preConcatenate(t3)
# Final interval is now rooted at 0,0,0 given that the transform includes the translation
imgP = prepareImgForDeconvolution(
img, aff,
FinalInterval([0, 0, 0],
[maxC - minC for minC, maxC in izip(roi[0], roi[1])]))
# Copy transformed view into ArrayImg for best performance in deconvolution
imgA = ArrayImgs.floats(Intervals.dimensionsAsLongArray(imgP))
ImgUtil.copy(ImgView.wrap(imgP, imgA.factory()), imgA)
IL.wrap(imgA, "one step index %i" % index).show()
def createTrainingData(img, samples, class_names, n_samples=0, ops=None):
""" img: a 2D RandomAccessibleInterval.
samples: a sequence of long[] (or int numeric sequence or Localizable) and class_index pairs; can be a generator.
n_samples: optional, the number of samples (in case samples is e.g. a generator).
class_names: a list of class names, as many as different class_index.
ops: optional, the sequence of ImgMath ops to apply to the img, defaults to filterBank(img)
return an instance of WEKA Instances
"""
ops = ops if ops else filterBank(img)
if 0 == n_samples:
n_samples = len(samples)
# Define a WEKA Attribute for each feature (one for op in the filter bank, plus the class)
attribute_names = ["attr-%i" % (i+1) for i in xrange(len(ops))]
attributes = ArrayList()
for name in attribute_names:
attributes.add(Attribute(name))
# Add an attribute at the end for the classification classes
attributes.add(Attribute("class", class_names))
# Create the training data structure
training_data = Instances("training", attributes, n_samples)
training_data.setClassIndex(len(attributes) -1)
opImgs = [compute(op).into(ArrayImgs.floats([img.dimension(0), img.dimension(1)])) for op in ops]
ra = Views.collapse(Views.stack(opImgs)).randomAccess()
for position, class_index in samples:
ra.setPosition(position)
tc = ra.get()
vector = array((tc.get(i).getRealDouble() for i in xrange(len(opImgs))), 'd')
vector += array([class_index], 'd')
training_data.add(DenseInstance(1.0, vector))
return training_data
def getPixels(self, n):
# 'n' is 1-based
# Target 2D array img to copy data into
aimg = ArrayImgs.unsignedShorts(self.dimensions[0:2])
# The number of slices of the 3D volume of a single timepoint
nZ = self.img4d.dimension(2)
# The slice_index if there was a single channel
slice_index = int((n - 1) / 2) # 0-based, of the whole 4D series
local_slice_index = slice_index % nZ # 0-based, of the timepoint 3D volume
timepoint_index = int(slice_index / nZ) # Z blocks
if 1 == n % 2:
# Odd slice index: image channel
fixedT = Views.hyperSlice(self.img4d, 3, timepoint_index)
fixedZ = Views.hyperSlice(fixedT, 2, local_slice_index)
w.copy(fixedZ.cursor(), aimg.cursor())
else:
# Even slice index: spheres channel
sd = SpheresData(self.kdtrees[timepoint_index], radius, inside,
outside)
volume = Views.interval(Views.raster(sd), self.dimensions3d)
plane = Views.hyperSlice(volume, 2, local_slice_index)
w.copy(plane.cursor(), aimg.cursor())
#
return aimg.update(None).getCurrentStorageArray()
def projectLastDimension(img, showEarly=False):
"""
Project the last dimension, e.g. a 4D image becomes a 3D image,
using the provided reducing function (e.g. min, max, sum).
"""
last_dimension = img.numDimensions() - 1
# The collapsed image
imgC = ArrayImgs.unsignedShorts(
[img.dimension(d) for d in xrange(last_dimension)])
if showEarly:
showStack(
imgC,
title="projected") # show it early, will be updated progressively
if img.dimension(last_dimension) > 10:
# one by one
print "One by one"
for i in xrange(img.dimension(last_dimension)):
print i
compute(maximum(imgC, Views.hyperSlice(img, last_dimension,
i))).into(imgC)
else:
# Each sample of img3DV is a virtual vector over all time frames at that 3D coordinate:
imgV = Views.collapseReal(img)
# Reduce each vector to a single scalar, using a Converter
# The Converter class
reduce_max = makeCompositeToRealConverter(
reducer_class=Math,
reducer_method="max",
reducer_method_signature="(DD)D")
img3DC = convert(imgV, reduce_max.newInstance(),
img.randomAccess().get().getClass())
ImgUtil.copy(ImgView.wrap(imgV, img.factory()), imgC)
return imgC
from net.imglib2.img.array import ArrayImgs
from net.imglib2.view import Views
from net.imglib2.type.numeric.integer import UnsignedByteType
img1 = ArrayImgs.unsignedBytes([10, 10, 10])
img2 = ArrayImgs.unsignedBytes([10, 10, 10])
stack = Views.stack([img1, img2])
for t in Views.iterable(stack):
t.setReal(1)
assert 1000 + 1000 == sum(t.get() for t in Views.iterable(stack))
def readKernel(path):
if kernel_header is None:
imp = IJ.openImage(path)
return ArrayImgs.floats(imp.getProcessor().getPixels(),
[imp.getWidth(), imp.getHeight(), imp.getNSlices()])
return readFloats(path, kernel_dimensions, kernel_header)
aimgs = []
first = klb.readFull(os.path.join(srcDir, filtered[0]))
dimensions = Intervals.dimensionsAsLongArray(first)
for i in xrange(n_threads):
m = Max(dimensions, filtered[i * chunk_size:(i + 1) * chunk_size])
m.start()
threads.append(m)
# Await completion of all
for m in threads:
m.join()
# Merge all results into a single maximum projection
max_projection = computeInto(maximum([m.aimg for m in threads]),
ArrayImgs.floats(dimensions))
max3D = writeZip(max_projection,
max_projection_path,
title="max projection")
max3D.show()
# Step 3: detect the nuclei and write their coordinates to a CSV file
calibration = [0.40625, 0.40625, 2.5]
somaDiameters = [4.0, 4.9, 5.7, 6.5] # 10, 12, 14, 16 px
peak_map = {}
for somaDiameter in somaDiameters:
# Parameters for detecting nuclei with difference of Gaussian
def __init__(self, dimensions, filenames):
super(Thread, self).__init__()
self.filenames = filenames
self.aimg = ArrayImgs.floats(dimensions)
self.klb = KLB.newInstance()
c.fwd()
c.localize(pos)
print "Cursor:", pos, "::", c.get()
# Test RandomAccess
ra = iraf.randomAccess()
c = iraf.cursor()
while c.hasNext():
c.fwd()
ra.setPosition(c)
c.localize(pos)
print "RandomAccess:", pos, "::", ra.get()
# Test source img: should be untouched
c = img.cursor()
while c.hasNext():
print "source:", c.next()
# Test interval view: the middle 2x2 square
v = Views.interval(iraf, [1, 1], [2, 2])
IL.wrap(v, "+2 view").show()
# An array from 0 to 15
a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
pixels = array(a, 'b')
img = ArrayImgs.unsignedBytes(pixels, [4, 4])
test(add(img, 2).view())
test(add(img, 2).view(FloatType()))
make_sure_path_exists( bp )
weightsTracker = WeightsTrackerVisitor( bp,
separator )
coordinateTracker.addVisitor( fitTracker )
if doRender:
coordinateTracker.addVisitor( matrixTracker )
coordinateTracker.addVisitor( floorTracker )
coordinateTracker.addVisitor( multiplierTracker )
coordinateTracker.addVisitor( weightsTracker )
# ImageJFunctions.show( subStrip )
tf = StripToMatrix( wholeStrip.dimension(0) / 2 )
store = ArrayImgs.doubles( subStrip.dimension( 0 ), subStrip.dimension( 1 ) )
CopyFromIntervalToInterval.copyToRealType( subStrip, store )
matrix = Views.interval( TransformView( Views.extendValue( store, DoubleType( Double.NaN ) ), tf ),
FinalInterval( [subStrip.dimension(1), subStrip.dimension(1)] ) )
# ImageJFunctions.show( matrix )
# ImageJFunctions.show( subStrip )
# ImageJFunctions.show( matrix )
print "adding thread for lower=%d and upper=%d" % (lower, upper)
t = Thread( target = run, args = ( matrix, startingCoordinates, coordinateTracker, options ) )
t.start()
threads.append( t )
for t in threads:
IL.wrap(img_sub, "LoopBuilder").show()
"""
# Example 2b: with ImgLib2 LoopBuilder using a clojure-defined TriConsumer
from net.imglib2.img.display.imagej import ImageJFunctions as IL
from net.imglib2.converter import Converters
from net.imglib2.img.array import ArrayImgs
from net.imglib2.util import Intervals
from net.imglib2.loops import LoopBuilder
from org.scijava.plugins.scripting.clojure import ClojureScriptEngine
img = IL.wrap(imp_rgb) # an ARGBType Img
red = Converters.argbChannel(img, 1) # a view of the ARGB red channel
green = Converters.argbChannel(img, 2) # a view of the ARGB green channel
img_sub = ArrayImgs.unsignedBytes(Intervals.dimensionsAsLongArray(img)) # the img to store the result
code = """
(deftype Consumer [^long threshold]
%s
(accept [self red green result] ; can't type-hint, doesn't find matching method
(let [^%s r red
^%s g green
^%s s result]
(.setInteger s (if (>= (.getInteger r) threshold)
(.getInteger g)
0)))))
""" % ((LoopBuilder.TriConsumer.getName(),) \
+ tuple(a.randomAccess().get().getClass().getName() for a in [red, green, img_sub]))
clj = ClojureScriptEngine()
# 2022 I2K example
# Albert Cardona 2022
# Create an ImgLib2 ArrayImg
# 1. With ArrayImgs: trivial
from net.imglib2.img.array import ArrayImgs
img = ArrayImgs.unsignedShorts([512, 512])
# Or reusing the pixel array from e.g., an open ImageJ image:
from net.imglib2.img.array import ArrayImgs
from ij import IJ
from ij.process import ShortProcessor
imp = IJ.getImage() # most recently activated ImageJ image window
ip = imp.getProcessor()
if isinstance(ip, ShortProcessor):
width, height = imp.getWidth(), imp.getHeight()
pixelsU16 = ip.getPixels()
img = ArrayImgs.unsignedShorts(pixelsU16, [width, height])
# Or creating a new pixel array from scratch
from net.imglib2.img.array import ArrayImgs
from jarray import zeros
pixelsU16 = zeros(512 * 512, 'h') # 'h' means short[]
img = ArrayImgs.unsignedShorts(pixelsU16, [512, 512])
# 2. With ArrayImgFactory: unnecessary, use ArrayImgs
from net.imglib2.img.array import ArrayImgFactory
from net.imglib2.type.numeric.integer import UnsignedShortType
# in the VIB's vib.BinaryInterpolator class, for ij.ImagePlus.
#
#
# Note that a java-based implementation would be significantly faster.
from net.imglib2.img.array import ArrayImgs
from org.scijava.vecmath import Point3f
from net.imglib2.img.display.imagej import ImageJFunctions as IL
from net.imglib2.view import Views
from net.imglib2.type.numeric.integer import UnsignedByteType
from jarray import zeros
from net.imglib2.algorithm.morphology.distance import DistanceTransform
# First 3D mask: a sphere
img1 = ArrayImgs.unsignedBytes([100, 100, 100])
p = zeros(3, 'l')
cursor = img1.cursor()
middle = Point3f(49.5,49.5, 49.5)
distance_sq = float(30 * 30)
while cursor.hasNext():
cursor.fwd()
cursor.localize(p)
if middle.distanceSquared(Point3f(p[0], p[1], p[2])) < distance_sq:
cursor.get().setOne()
else:
cursor.get().setZero()
imp1 = IL.wrap(img1, "sphere")
imp1.setDisplayRange(0, 1)
# @OpService ops # @float[] arr # @long[] dims # @OUTPUT Img out from net.imagej.ops import Ops from net.imglib2.img import Img from net.imglib2.img.array import ArrayImgs arr = list(arr) dims = list(dims) out = ArrayImgs.floats(arr, dims)
from net.imglib2.img.array import ArrayImgs
from time import time
from itertools import imap
from collections import deque
from net.imglib2.util.Util import getTypeFromInterval
from org.scijava.plugins.scripting.clojure import ClojureScriptEngine
from net.imglib2.type.numeric.integer import UnsignedByteType
from net.imglib2.type.operators import SetOne
from java.util.function import Predicate, Consumer, Function
from java.lang.invoke import MethodHandles, MethodType, LambdaMetafactory
from java.lang import Void
import sys
from org.objectweb.asm import ClassWriter, Opcodes
from java.lang import Object, ClassLoader, String, Class, Integer
img = ArrayImgs.unsignedBytes([512, 512, 5])
n_iterations = 4
# Test 1: for loop
for i in xrange(n_iterations):
t0 = time()
for t in img.cursor():
t.setOne()
t1 = time()
print "looping:", t1 - t0 # About 1 seconds
# Test 2: imap + deque with maxlen=0
for i in xrange(n_iterations):
t0 = time()
# Performance almost as bad as the for loop
# Load the facc and cw classes
loader = CustomClassLoader()
accessClass = loader.defineClass("my/UnsignedByteToFloatAccess",
facc.toByteArray())
samplerClass = loader.defineClass("my/UnsignedByteToFloatSamplerConverter",
cw.toByteArray())
# Test SamplerConverter:
from net.imglib2.img.array import ArrayImgs
from net.imglib2.converter import Converters
from net.imglib2.util import ImgUtil
from net.imglib2.img import ImgView
dimensions = [100, 100, 100]
img1 = ArrayImgs.unsignedBytes(dimensions)
c = img1.cursor()
while c.hasNext():
c.next().setOne()
img2 = ArrayImgs.floats(dimensions)
def testASM():
ImgUtil.copy(
ImgView.wrap(
Converters.convertRandomAccessibleIterableInterval(
img1, samplerClass.newInstance()), img1.factory()), img2)
timeit(20, testASM)
imgB0,
transformedView(imgB1, matrices["imgB0-imgB1"]),
transformedView(imgB2, matrices["imgB0-imgB2"]),
transformedView(imgB3, matrices["imgB0-imgB3"])
]
#viewInBDV(*transformed)
viewAsStack(*transformed)
exe = newFixedThreadPool(4)
try:
# Copy into ArrayImg
def copyIntoArrayImg(img):
return ImgMath.compute(ImgMath.img(img)).into(ArrayImgs.floats([img.dimension(d) for d in xrange(img.numDimensions())]))
futures = [exe.submit(Task(copyIntoArrayImg, img)) for img in [imgB0, imgB1, imgB2, imgB3]]
imgB0, imgB1, imgB2, imgB3 = [f.get() for f in futures]
finally:
exe.shutdown()
viewAsStack(imgB0, imgB1, imgB2, imgB3) # ArrayImg instances
# Read the kernel as a FloatType ArrayImg
kernel = readFloats("/home/albert/lab/Raghav-IsoView-PSF/PSF-19x19x25.tif", [19, 19, 25], header=434)
def affine3D(matrix):
aff = AffineTransform3D()
aff.set(*matrix)
return aff
from net.imglib2.realtransform import RealViews, AffineTransform3D
from net.imglib2.interpolation.randomaccess import NLinearInterpolatorFactory
from net.imglib2.util import Intervals
img = IL.wrap(IJ.getImage())
# Cut out a cube
img1 = Views.zeroMin(
Views.interval(img, [39, 49, 0], [39 + 378 - 1, 49 + 378 - 1, 378 - 1]))
print[img1.dimension(d) for d in xrange(img1.numDimensions())]
# Rotate the cube on the Y axis to the left
img2 = Views.rotate(img1, 2, 0)
# copy into ArrayImg
img1a = ArrayImgs.unsignedShorts([378, 378, 378])
ImgMath.compute(ImgSource(img1)).into(img1a)
img2a = ArrayImgs.unsignedShorts([378, 378, 378])
ImgMath.compute(ImgSource(img2)).into(img2a)
img1 = img1a
img2 = img2a
IL.wrap(img1, "cube").show()
IL.wrap(img2, "cube rotated").show()
# Now register them
# IMPORTANT PARAMETERS
raw_calibration = [1.0, 1.0, 1.0] # micrometers per pixel
# @UIService ui
import net.imglib2.img.array.ArrayImgs as ArrayImgs
import bdv.util.BdvFunctions as BdvFunctions
import random as random
w = 101
h = w
d = w
img = ArrayImgs.unsignedBytes(w, h, d)
img_ra = img.randomAccess()
for x in range(0, w):
for y in range(0, h):
for z in range(0, d):
img_ra.setPosition(x, 0)
img_ra.setPosition(y, 1)
img_ra.setPosition(z, 2)
xo = x - 50
yo = y - 50
zo = z - 50
val = 255 - ( xo**2 + yo**2 + zo**2 ) ** 0.65
img_ra.get().setReal(int(val))
print('done')
from random import random
from net.imglib2.algorithm.math import ImgMath
from net.imglib2.util import ImgUtil
from net.imglib2.img import ImgView
import sys
sys.path.append("/home/albert/lab/scripts/python/imagej/IsoView-GCaMP/")
from lib.util import timeit
roi = (
[1, 228, 0], # top-left coordinates
[1 + 406 - 1, 228 + 465 - 1,
0 + 325 - 1]) # bottom-right coordinates (inclusive, hence the -1)
dimensions = [maxC - minC + 1 for minC, maxC in zip(roi[0], roi[1])]
imgU = ArrayImgs.unsignedShorts(dimensions)
imgF = ArrayImgs.floats(dimensions)
#c = imgF.cursor()
#while c.hasNext():
# c.next().set(random() * 65535)
ImgMath.compute(ImgMath.number(17)).into(imgF)
ImgMath.compute(ImgMath.img(imgF)).into(imgU)
aff = AffineTransform3D()
"""
aff.set(1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0)
"""
aff.set(*[
0.9999949529841275, -0.0031770224721305684, 2.3118912942710207e-05,
-1.6032353998500826, 0.003177032139125933, 0.999994860398559,
from ij import IJ
from net.imglib2.view import Views
from net.imglib2.realtransform import AffineTransform3D, RealViews
from net.imglib2.interpolation.randomaccess import NLinearInterpolatorFactory
from net.imglib2.img.array import ArrayImgs
from jarray import zeros
from math import sqrt
import sys
sys.path.append("/home/albert/lab/scripts/python/imagej/IsoView-GCaMP")
from lib.ui import showAsStack, makeTranslationUI
from lib.util import affine3D
# Create a [100,100,100] image with a sphere of radius 20 at the center
aimg = ArrayImgs.unsignedBytes([10, 10, 10])
c = aimg.cursor()
pos = zeros(3, 'l')
while c.hasNext():
t = c.next()
c.localize(pos)
v = sqrt(sum(pow(p - 5, 2) for p in pos))
if v < 2:
t.setReal(255)
# Use the image to represent a channel
# Transform each channel independently
def identity():
return affine3D([1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0])
aff1 = identity()
