def test_graph(self):
c = vx.CreateContext()
g = vx.CreateGraph(c)
assert vx.GetStatus(vx.reference(g)) == vx.SUCCESS
assert vx.QueryReference(vx.reference(g), vx.REF_ATTRIBUTE_TYPE, 'vx_enum') == (vx.SUCCESS, vx.TYPE_GRAPH)
assert vx.IsGraphVerified(g) == vx.false_e
assert vx.QueryGraph(g, vx.GRAPH_ATTRIBUTE_NUMNODES, 'vx_uint32') == (vx.SUCCESS, 0)
img = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_U8)
dx = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_S16)
dy = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_S16)
node = vx.Sobel3x3Node(g, img, dx, dy)
assert vx.VerifyGraph(g) == vx.SUCCESS
assert vx.ProcessGraph(g) == vx.SUCCESS
assert vx.ScheduleGraph(g) == vx.SUCCESS
assert vx.WaitGraph(g) == vx.SUCCESS
p = vx.GetParameterByIndex(node, 0)
assert vx.AddParameterToGraph(g, p) == vx.SUCCESS
p2 = vx.GetGraphParameterByIndex(g, 0)
assert vx.SetGraphParameterByIndex(g, 0, vx.reference(dx)) == vx.SUCCESS
assert vx.VerifyGraph(g) != vx.SUCCESS
assert vx.SetGraphParameterByIndex(g, 0, vx.reference(img)) == vx.SUCCESS
assert vx.VerifyGraph(g) == vx.SUCCESS
assert vx.IsGraphVerified(g) == vx.true_e
def callback(node):
callback.called = True
return vx.SUCCESS
assert vx.AssignNodeCallback(node, callback) == vx.SUCCESS
assert vx.ProcessGraph(g) == vx.SUCCESS
assert callback.called
def callback(node):
raise TypeError('Escaping from callback')
return vx.SUCCESS
assert vx.AssignNodeCallback(node, callback) != vx.SUCCESS
assert vx.AssignNodeCallback(node, None) == vx.SUCCESS
assert vx.AssignNodeCallback(node, callback) == vx.SUCCESS
assert vx.VerifyGraph(g) == vx.SUCCESS
assert vx.ProcessGraph(g) != vx.SUCCESS
img = vx.CreateVirtualImage(g, 640, 480, vx.DF_IMAGE_RGB)
assert vx.GetStatus(vx.reference(img)) == vx.SUCCESS
assert vx.ReleaseGraph(g) == vx.SUCCESS
assert vx.ReleaseContext(c) == vx.SUCCESS
def vxProcessGraph(self):
try:
status = vx.ProcessGraph(self.graph)
if status != 0:
raise NameError(
"Graph processing failed! with {} error code".format(
status))
except Exception as err:
raise err
def main():
# go_pro = GoProCamera()
# go_pro.shoot_still()
name = '3'
pil_img = Image.open('3.JPG') #go_pro.get_image()
pil_img = pil_img.convert('L')
pil_img = pil_img.resize((600, 800))
# OpenVX
context = vx.CreateContext()
graph = vx.CreateGraph(context)
img_w = pil_img.width
img_h = pil_img.height
vxImage = pil2vx(context, pil_img)
grey = vx.CreateImage(context, img_w, img_h, vx.DF_IMAGE_U8)
images = [
vx.CreateImage(context, img_w, img_h, vx.DF_IMAGE_S16),
vx.CreateImage(context, img_w, img_h, vx.DF_IMAGE_S16),
vx.CreateImage(context, img_w, img_h, vx.DF_IMAGE_S16),
vx.CreateImage(context, img_w, img_h, vx.DF_IMAGE_U8),
vx.CreateImage(context, img_w, img_h, vx.DF_IMAGE_U8),
vx.CreateImage(context, img_w, img_h, vx.DF_IMAGE_U8)
]
vx.Sobel3x3Node(graph, vxImage, images[1], images[2])
vx.MagnitudeNode(graph, images[1], images[2], images[0])
vx.PhaseNode(graph, images[1], images[2], images[3])
threshold = vx.CreateThreshold(context, vx.THRESHOLD_TYPE_RANGE,
vx.TYPE_UINT8)
#vx.SetThresholdAttribute(threshold,vx.THRESHOLD_ATTRIBUTE_THRESHOLD_up, 10, "vx_uint32")
vx.SetThresholdAttribute(threshold, vx.THRESHOLD_ATTRIBUTE_THRESHOLD_LOWER,
10, "vx_uint32")
vx.SetThresholdAttribute(threshold, vx.THRESHOLD_ATTRIBUTE_THRESHOLD_UPPER,
100, "vx_uint32")
print vx.QueryThreshold(threshold, vx.THRESHOLD_ATTRIBUTE_THRESHOLD_UPPER,
"vx_uint32")
print vx.QueryThreshold(threshold, vx.THRESHOLD_ATTRIBUTE_THRESHOLD_LOWER,
"vx_uint32")
vx.CannyEdgeDetectorNode(graph, vxImage, threshold, 3, vx.NORM_L1,
images[4])
status = vx.VerifyGraph(graph)
if status == vx.SUCCESS:
status = vx.ProcessGraph(graph)
print status
mag = vx2np(images[0])
phase = vx2np(images[3])
canny = vx2np(images[4])
pil_img.save(name + '_input.jpg')
Image.fromarray(mag).save(name + '_magnitude.jpg')
Image.fromarray(canny).save(name + '_canny.jpg')
pil_img.show('Source')
if True: # Show image using PIL
pil_img.show()
Image.fromarray(mag).show('Magnitued')
Image.fromarray(phase).show('Phase')
Image.fromarray(canny).show('Canny edge detector')
def test_sobel(self):
c = vx.CreateContext()
img = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_U8)
dx = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_S16)
dy = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_S16)
g = vx.CreateGraph(c)
node = vx.Sobel3x3Node(g, img, dx, dy)
assert vx.GetStatus(vx.reference(node)) == vx.SUCCESS
assert vx.VerifyGraph(g) == vx.SUCCESS
assert vx.ProcessGraph(g) == vx.SUCCESS
# FIXME: assert something
assert vx.ReleaseContext(c) == vx.SUCCESS
def test_user_kernel(self):
c = vx.CreateContext()
def func(node, parameters, num):
func.called = True
assert num == 2
input, output = vx.from_reference(parameters[0]), vx.from_reference(parameters[0])
_, r = vx.GetValidRegionImage(input)
_, addr, indata = vx.AccessImagePatch(input, r, 0, None, None, vx.READ_ONLY)
_, addr, outdata = vx.AccessImagePatch(output, r, 0, None, None, vx.WRITE_ONLY)
outdata[0], outdata[100] = indata[100], indata[0]
vx.CommitImagePatch(output, r, 0, addr, outdata)
vx.CommitImagePatch(input, r, 0, addr, indata)
return vx.SUCCESS
def validate_input(node, index):
validate_input.called = True
assert index == 0
param = vx.GetParameterByIndex(node, index)
image = vx.QueryParameter(param, vx.PARAMETER_ATTRIBUTE_REF, 'vx_image')[1]
if vx.QueryImage(image, vx.IMAGE_ATTRIBUTE_FORMAT, 'vx_df_image') == (vx.SUCCESS, vx.DF_IMAGE_U8):
s = vx.SUCCESS
else:
s = vx.ERROR_INVALID_VALUE
vx.ReleaseImage(image)
vx.ReleaseParameter(param)
return s
def validate_output(node, index, meta):
validate_output.called = True
assert index == 1
param0 = vx.GetParameterByIndex(node, 0)
input = vx.QueryParameter(param0, vx.PARAMETER_ATTRIBUTE_REF, 'vx_image')[1]
param1 = vx.GetParameterByIndex(node, index)
output = vx.QueryParameter(param1, vx.PARAMETER_ATTRIBUTE_REF, 'vx_image')[1]
_, width = vx.QueryImage(input, vx.IMAGE_ATTRIBUTE_WIDTH, 'vx_uint32')
_, height = vx.QueryImage(input, vx.IMAGE_ATTRIBUTE_HEIGHT, 'vx_uint32')
vx.SetMetaFormatAttribute(meta, vx.IMAGE_ATTRIBUTE_WIDTH, width, 'vx_uint32')
vx.SetMetaFormatAttribute(meta, vx.IMAGE_ATTRIBUTE_HEIGHT, height, 'vx_uint32')
vx.SetMetaFormatAttribute(meta, vx.IMAGE_ATTRIBUTE_FORMAT, vx.DF_IMAGE_U8, 'vx_df_image')
vx.ReleaseImage(input)
vx.ReleaseImage(output)
vx.ReleaseParameter(param0)
vx.ReleaseParameter(param1)
return vx.SUCCESS
enum = vx.KERNEL_BASE(vx.ID_DEFAULT, 7) + 1
kernel = vx.AddKernel(c, b"org.test.hello", enum, func, 2, validate_input, validate_output, None, None)
assert vx.GetStatus(vx.reference(kernel)) == vx.SUCCESS
assert vx.AddParameterToKernel(kernel, 0, vx.INPUT, vx.TYPE_IMAGE, vx.PARAMETER_STATE_REQUIRED) == vx.SUCCESS
assert vx.AddParameterToKernel(kernel, 1, vx.OUTPUT, vx.TYPE_IMAGE, vx.PARAMETER_STATE_REQUIRED) == vx.SUCCESS
assert vx.SetKernelAttribute(kernel, vx.KERNEL_ATTRIBUTE_LOCAL_DATA_SIZE, 42, 'vx_size') == vx.SUCCESS
assert vx.FinalizeKernel(kernel) == vx.SUCCESS
g = vx.CreateGraph(c)
img = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_U8)
_, r = vx.GetValidRegionImage(img)
assert r.start_x == 0
assert r.end_x == 640
_, addr, data = vx.AccessImagePatch(img, r, 0, None, None, vx.WRITE_ONLY)
data[0], data[100] = b'H', b'I'
assert vx.CommitImagePatch(img, r, 0, addr, data) == vx.SUCCESS
virt = vx.CreateVirtualImage(g, 0, 0, vx.DF_IMAGE_VIRT)
# virt = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_U8)
node = vx.CreateGenericNode(g, kernel)
vx.SetParameterByIndex(node, 0, vx.reference(img))
vx.SetParameterByIndex(node, 1, vx.reference(virt))
assert vx.VerifyGraph(g) == vx.SUCCESS
assert validate_input.called
assert validate_output.called
assert vx.QueryImage(virt, vx.IMAGE_ATTRIBUTE_WIDTH, 'vx_uint32') == (vx.SUCCESS, 640)
assert vx.QueryImage(virt, vx.IMAGE_ATTRIBUTE_HEIGHT, 'vx_uint32') == (vx.SUCCESS, 480)
assert vx.ProcessGraph(g) == vx.SUCCESS
assert func.called == True
_, addr, data = vx.AccessImagePatch(virt, r, 0, None, None, vx.READ_ONLY)
assert data[0], data[100] == 'IH'
vx.CommitImagePatch(virt, r, 0, addr, data)
img2 = vx.CreateImage(c, 640, 480, vx.DF_IMAGE_U16)
vx.SetParameterByIndex(node, 0, vx.reference(img2))
assert vx.VerifyGraph(g) == vx.ERROR_INVALID_VALUE
enum = vx.KERNEL_BASE(vx.ID_DEFAULT, 7) + 2
kernel = vx.AddKernel(c, b"org.test.hello2", enum, func, 2, validate_input, validate_output, None, None)
assert vx.RemoveKernel(kernel) == vx.SUCCESS
assert vx.ReleaseGraph(g) == vx.SUCCESS
assert vx.ReleaseContext(c) == vx.SUCCESS
from pyvx import vx
context = vx.CreateContext()
images = [
vx.CreateImage(context, 640, 480, vx.DF_IMAGE_UYVY),
vx.CreateImage(context, 640, 480, vx.DF_IMAGE_S16),
vx.CreateImage(context, 640, 480, vx.DF_IMAGE_U8),
]
graph = vx.CreateGraph(context)
virts = [
vx.CreateVirtualImage(graph, 0, 0, vx.DF_IMAGE_VIRT),
vx.CreateVirtualImage(graph, 0, 0, vx.DF_IMAGE_VIRT),
vx.CreateVirtualImage(graph, 0, 0, vx.DF_IMAGE_VIRT),
vx.CreateVirtualImage(graph, 0, 0, vx.DF_IMAGE_VIRT),
]
vx.ChannelExtractNode(graph, images[0], vx.CHANNEL_Y, virts[0])
vx.Gaussian3x3Node(graph, virts[0], virts[1])
vx.Sobel3x3Node(graph, virts[1], virts[2], virts[3])
vx.MagnitudeNode(graph, virts[2], virts[3], images[1])
vx.PhaseNode(graph, virts[2], virts[3], images[2])
status = vx.VerifyGraph(graph)
if status == vx.SUCCESS:
status = vx.ProcessGraph(graph)
else:
print("Verification failed.")
vx.ReleaseContext(context)