Python numBytesの例

コード例 #1

ファイル: test_qimageview.py プロジェクト: deactivated/qimage2ndarray

def test_data_access():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_Indexed8)
    setNumColors(qimg, 256)
    qimg.fill(42)
    v = _qimageview(qimg)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10,10], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #2

def test_data_access():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_Indexed8)
    setNumColors(qimg, 256)
    qimg.fill(42)
    v = _qimageview(qimg)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 10], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #3

ファイル: test_qimageview.py プロジェクト: deactivated/qimage2ndarray

def test_ARGB32():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_ARGB32)
    qimg.fill(0)
    v = _qimageview(qimg)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10,12], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #4

def test_ARGB32():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_ARGB32)
    qimg.fill(0)
    v = _qimageview(qimg)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 12], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #5

def test_RGBA8888():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_RGBA8888)
    qimg.fill(0)
    v = _qimageview(qimg)
    qimg.setPixel(12, 10, QtGui.qRgb(0x12, 0x34, 0x56))
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 12],
                 0x123456ff if sys.byteorder == 'big' else 0xff563412)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #6

ファイル: test_qimage_views.py プロジェクト: twil/qimage2ndarray

def test_byte_view_rgb32():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_RGB32)
    v = qimage2ndarray.byte_view(qimg)
    qimg.fill(23)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320, 4))
    assert_equal(list(v[10,10]), [23, 0, 0, 0xff])
    assert_equal(list(v[10,12]), [42, 0, 0, 0xff])
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #7

ファイル: test_qimageview.py プロジェクト: opencor/qimage2ndarray

def test_ARGB32():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_ARGB32)
    qimg.fill(0)
    v = _qimageview(qimg)
    qimg.setPixel(12, 10, QtGui.qRgb(0x12, 0x34, 0x56))
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 12],
                 0xff123456 if sys.byteorder == 'little' else 0x563412ff)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #8

def test_raw_rgb16():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_RGB16)
    qimg.fill(0)
    v = qimage2ndarray.raw_view(qimg)
    qimg.fill(23)
    qimg.setPixel(12, 10, QtGui.qRgb(0, 0, 91))
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 10], 23)
    assert_equal(v[10, 12], 91 >> 3)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #9

def test_raw_grayscale8():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_Grayscale8)
    qimg.fill(0)
    v = qimage2ndarray.raw_view(qimg)
    qimg.fill(1)
    qimg.setPixel(12, 10, QtGui.qRgb(42, 42, 42))
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 10], 1)
    assert_equal(v[10, 12], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #10

ファイル: test_qimage_views.py プロジェクト: twil/qimage2ndarray

def test_byte_view_indexed():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_Indexed8)
    setNumColors(qimg, 256)
    v = qimage2ndarray.byte_view(qimg)
    qimg.fill(23)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320, 1))
    assert_equal(list(v[10,10]), [23])
    assert_equal(list(v[10,12]), [42])
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #11

ファイル: test_qimage_views.py プロジェクト: twil/qimage2ndarray

def test_raw_rgb32():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_RGB32)
    qimg.fill(0)
    v = qimage2ndarray.raw_view(qimg)
    qimg.fill(23)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10,10], 23 | 0xff000000)
    assert_equal(v[10,12], 42 | 0xff000000)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #12

def test_raw_rgba64():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_RGBA64)
    qimg.fill(0)
    v = qimage2ndarray.raw_view(qimg)
    qimg.fill(1)
    qimg.setPixel(12, 10, QtGui.qRgb(0x12, 0x34, 0x56))
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 10], 0x010100000000)
    assert_equal(v[10, 12], 0xffff565634341212)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #13

def test_coordinate_access():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_Indexed8)
    setNumColors(qimg, 256)
    qimg.fill(0)
    v = _qimageview(qimg)
    qimg.fill(23)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 10], 23)
    assert_equal(v[10, 12], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #14

ファイル: test_qimage_views.py プロジェクト: twil/qimage2ndarray

def test_raw_indexed8():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_Indexed8)
    setNumColors(qimg, 256)
    qimg.fill(0)
    v = qimage2ndarray.raw_view(qimg)
    qimg.fill(23)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10,10], 23)
    assert_equal(v[10,12], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #15

ファイル: test_qimageview.py プロジェクト: deactivated/qimage2ndarray

def test_coordinate_access():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_Indexed8)
    setNumColors(qimg, 256)
    qimg.fill(0)
    v = _qimageview(qimg)
    qimg.fill(23)
    qimg.setPixel(12, 10, 42)
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10,10], 23)
    assert_equal(v[10,12], 42)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #16

ファイル: test_qimageview.py プロジェクト: opencor/qimage2ndarray

def test_RGBX64():
    qimg = QtGui.QImage(320, 240, QtGui.QImage.Format_RGBX64)
    qimg.fill(QtGui.qRgb(0, 0, 0))
    v = _qimageview(qimg)
    qimg.setPixel(12, 10, QtGui.qRgb(0x12, 0x34, 0x56))
    assert_equal(v.shape, (240, 320))
    assert_equal(v[10, 10],
                 0xffff000000000000 if sys.byteorder == 'little' else 0xffff)
    assert_equal(
        v[10, 12], 0xffff565634341212
        if sys.byteorder == 'little' else 0x121234345656ffff)
    assert_equal(v.nbytes, numBytes(qimg))

コード例 #17

ファイル: test_array2qimage.py プロジェクト: christwell/qimage2ndarray

def test_gray2qimage():
    a = numpy.zeros((240, 320), dtype = float)
    a[12,10] = 42.42
    a[13,10] = -10
    qImg = qimage2ndarray.gray2qimage(a)
    assert not qImg.isNull()
    assert_equal(qImg.width(), 320)
    assert_equal(qImg.height(), 240)
    assert_equal(qImg.format(), QtGui.QImage.Format_Indexed8)
    assert_equal(a.nbytes, numBytes(qImg) * a.itemsize)
    assert_equal(numColors(qImg), 256)
    assert_equal(hex(qImg.pixel(10,12)), hex(QtGui.qRgb(42,42,42)))
    assert_equal(hex(qImg.pixel(10,14)), hex(QtGui.qRgb(0,0,0)))
    assert_equal(hex(qImg.pixel(10,13)), hex(QtGui.qRgb(0,0,0)))

コード例 #18

def test_gray2qimage():
    a = numpy.zeros((240, 320), dtype = float)
    a[12,10] = 42.42
    a[13,10] = -10
    qImg = qimage2ndarray.gray2qimage(a)
    assert not qImg.isNull()
    assert_equal(qImg.width(), 320)
    assert_equal(qImg.height(), 240)
    assert_equal(qImg.format(), QtGui.QImage.Format_Indexed8)
    assert_equal(a.nbytes, numBytes(qImg) * a.itemsize)
    assert_equal(numColors(qImg), 256)
    assert_equal(hex(qImg.pixel(10,12)), hex(QtGui.qRgb(42,42,42)))
    assert_equal(hex(qImg.pixel(10,14)), hex(QtGui.qRgb(0,0,0)))
    assert_equal(hex(qImg.pixel(10,13)), hex(QtGui.qRgb(0,0,0)))

コード例 #19

ファイル: test_array2qimage.py プロジェクト: christwell/qimage2ndarray

def test_gray2qimage_normalize_domain():
    a = numpy.zeros((240, 320), dtype = float)
    a[12,10] = 42.42
    a[13,10] = -10
    qImg = qimage2ndarray.gray2qimage(a, normalize = (-100, 100))
    assert not qImg.isNull()
    assert_equal(qImg.width(), 320)
    assert_equal(qImg.height(), 240)
    assert_equal(qImg.format(), QtGui.QImage.Format_Indexed8)
    assert_equal(a.nbytes, numBytes(qImg) * a.itemsize)
    assert_equal(numColors(qImg), 256)
    x = int(255 * 142.42 / 200.0)
    assert_equal(hex(qImg.pixel(10,12)), hex(QtGui.qRgb(x,x,x)))
    x = int(255 *  90.0 / 200.0)
    assert_equal(hex(qImg.pixel(10,13)), hex(QtGui.qRgb(x,x,x)))
    x = int(255 * 100.0 / 200.0)
    assert_equal(hex(qImg.pixel(10,14)), hex(QtGui.qRgb(x,x,x)))

コード例 #20

def test_gray2qimage_normalize_domain():
    a = numpy.zeros((240, 320), dtype = float)
    a[12,10] = 42.42
    a[13,10] = -10
    qImg = qimage2ndarray.gray2qimage(a, normalize = (-100, 100))
    assert not qImg.isNull()
    assert_equal(qImg.width(), 320)
    assert_equal(qImg.height(), 240)
    assert_equal(qImg.format(), QtGui.QImage.Format_Indexed8)
    assert_equal(a.nbytes, numBytes(qImg) * a.itemsize)
    assert_equal(numColors(qImg), 256)
    x = int(255 * 142.42 / 200.0)
    assert_equal(hex(qImg.pixel(10,12)), hex(QtGui.qRgb(x,x,x)))
    x = int(255 *  90.0 / 200.0)
    assert_equal(hex(qImg.pixel(10,13)), hex(QtGui.qRgb(x,x,x)))
    x = int(255 * 100.0 / 200.0)
    assert_equal(hex(qImg.pixel(10,14)), hex(QtGui.qRgb(x,x,x)))

コード例 #21

ファイル: test_array2qimage.py プロジェクト: christwell/qimage2ndarray

def test_gray2qimage_masked():
    a = numpy.zeros((240, 320), dtype = float)
    a[12,10] = 42.42
    a[13,10] = -10
    a[:,160:] = 100
    a = numpy.ma.masked_greater(a, 99)
    qImg = qimage2ndarray.gray2qimage(a, normalize = True)
    assert not qImg.isNull()
    assert_equal(qImg.width(), 320)
    assert_equal(qImg.height(), 240)
    assert_equal(qImg.format(), QtGui.QImage.Format_Indexed8)
    assert_equal(a.nbytes, numBytes(qImg) * a.itemsize)
    assert_equal(numColors(qImg), 256)
    assert_equal(hex(qImg.pixel(10,12)), hex(QtGui.qRgb(255,255,255)))
    assert_equal(hex(qImg.pixel(10,13)), hex(QtGui.qRgb(0,0,0)))
    x = int(255 * 10.0 / 52.42)
    assert_equal(hex(qImg.pixel(10,14)), hex(QtGui.qRgb(x,x,x)))
    assert_equal(QtGui.qAlpha(qImg.pixel(0,10)), 255)
    assert_equal(QtGui.qAlpha(qImg.pixel(200,10)), 0)

コード例 #22

def test_gray2qimage_masked():
    a = numpy.zeros((240, 320), dtype = float)
    a[12,10] = 42.42
    a[13,10] = -10
    a[:,160:] = 100
    a = numpy.ma.masked_greater(a, 99)
    qImg = qimage2ndarray.gray2qimage(a, normalize = True)
    assert not qImg.isNull()
    assert_equal(qImg.width(), 320)
    assert_equal(qImg.height(), 240)
    assert_equal(qImg.format(), QtGui.QImage.Format_Indexed8)
    assert_equal(a.nbytes, numBytes(qImg) * a.itemsize)
    assert_equal(numColors(qImg), 256)
    assert_equal(hex(qImg.pixel(10,12)), hex(QtGui.qRgb(255,255,255)))
    assert_equal(hex(qImg.pixel(10,13)), hex(QtGui.qRgb(0,0,0)))
    x = int(255 * 10.0 / 52.42)
    assert_equal(hex(qImg.pixel(10,14)), hex(QtGui.qRgb(x,x,x)))
    assert_equal(QtGui.qAlpha(qImg.pixel(0,10)), 255)
    assert_equal(QtGui.qAlpha(qImg.pixel(200,10)), 0)