diff --git a/testdata/cv/cameracalibration/circles/circles_24964.png b/testdata/cv/cameracalibration/circles/circles_24964.png
new file mode 100644
index 000000000..18b9868a1
Binary files /dev/null and b/testdata/cv/cameracalibration/circles/circles_24964.png differ
diff --git a/testdata/cv/cameracalibration/fisheye/stereo_pair_014.png b/testdata/cv/cameracalibration/fisheye/stereo_pair_014.png
new file mode 100644
index 000000000..c1e2b5b60
Binary files /dev/null and b/testdata/cv/cameracalibration/fisheye/stereo_pair_014.png differ
diff --git a/testdata/cv/mcc/mcc_ccm_test.jpg b/testdata/cv/mcc/mcc_ccm_test.jpg
new file mode 100644
index 000000000..2faeb3180
Binary files /dev/null and b/testdata/cv/mcc/mcc_ccm_test.jpg differ
diff --git a/testdata/cv/mcc/mcc_ccm_test.yml b/testdata/cv/mcc/mcc_ccm_test.yml
new file mode 100644
index 000000000..c87abaf92
--- /dev/null
+++ b/testdata/cv/mcc/mcc_ccm_test.yml
@@ -0,0 +1,91 @@
+%YAML:1.0
+---
+Macbeth_corners: [ 2.51388901e+02, 9.04293518e+01, 6.18812256e+02,
+    9.31525421e+01, 6.40433594e+02, 3.47054962e+02, 2.34627167e+02,
+    3.43148376e+02 ]
+chartsRGB: !!opencv-matrix
+   rows: 72
+   cols: 5
+   dt: d
+   data: [ 770., 9.7018181818181816e+01, 9.4645301922076519e-01, 95.,
+       105., 770., 8.0824675324675326e+01, 1.1595628200085211e+00, 77.,
+       87., 770., 5.3563636363636363e+01, 3.9092600386245806e+00, 42.,
+       73., 798., 1.6569423558897242e+02, 9.7035861631224973e-01, 163.,
+       169., 798., 1.3274310776942355e+02, 1.0188309020321478e+00, 130.,
+       136., 798., 1.1540100250626566e+02, 2.0155035683620337e+00, 110.,
+       126., 784., 8.2394132653061220e+01, 1.1851617743507668e+00, 78.,
+       87., 784., 9.5862244897959172e+01, 1.1883374860876685e+00, 92.,
+       99., 784., 1.2781377551020407e+02, 1.6244352332909029e+00, 122.,
+       133., 770., 8.0270129870129864e+01, 1.4241940017300359e+00, 75.,
+       85., 770., 1.0111298701298702e+02, 1.3537682520831342e+00, 96.,
+       105., 770., 6.5819480519480521e+01, 3.9673845276050486e+00, 52.,
+       94., 784., 1.1550765306122447e+02, 1.0773373271034734e+00, 113.,
+       118., 784., 1.0674362244897958e+02, 1.0273480523763854e+00, 104.,
+       110., 784., 1.4758545918367346e+02, 1.4233270858221301e+00, 143.,
+       153., 783., 8.9015325670498086e+01, 1.8088105968192547e+00, 84.,
+       96., 783., 1.5520561941251597e+02, 1.1798084539336262e+00, 152.,
+       159., 783., 1.6633205619412516e+02, 1.3521967319711203e+00, 162.,
+       170., 826., 1.7623728813559322e+02, 1.0562230700190447e+00, 171.,
+       179., 826., 1.3204358353510898e+02, 1.8067773247212249e+00, 118.,
+       138., 826., 3.6970944309927361e+01, 8.1682743222591547e+00, 9.,
+       122., 842., 5.3210213776722092e+01, 1.6060278974867714e+00, 47.,
+       60., 842., 5.7219714964370546e+01, 1.3923581440906183e+00, 54.,
+       63., 842., 1.2389192399049882e+02, 1.8954768899411336e+00, 119.,
+       131., 841., 1.6775148632580260e+02, 9.5875752068363906e-01, 164.,
+       170., 841., 9.6422116527942919e+01, 9.3367991507067238e-01, 92.,
+       100., 841., 7.7549346016646837e+01, 2.9950816084097802e+00, 67.,
+       96., 841., 7.2869203329369796e+01, 1.3971315808677551e+00, 69.,
+       83., 841., 5.8565992865636140e+01, 1.2426178667841234e+00, 55.,
+       63., 841., 8.1378121284185482e+01, 2.3599304267415597e+00, 75.,
+       91., 839., 1.3092252681764003e+02, 1.4074398956166911e+00, 125.,
+       136., 839., 1.7468295589988080e+02, 1.2398172946695771e+00, 169.,
+       178., 839., 8.6032181168057207e+01, 3.9496429597484721e+00, 72.,
+       114., 841., 2.0054696789536266e+02, 1.0404396126431092e+00, 196.,
+       203., 841., 1.7241379310344826e+02, 1.1332190844963712e+00, 167.,
+       177., 841., 6.2807372175980973e+01, 4.6513131247204011e+00, 43.,
+       95., 885., 2.9964971751412431e+01, 1.7963912740189363e+00, 24.,
+       40., 885., 3.4445197740112995e+01, 1.5450274129158603e+00, 29.,
+       43., 885., 9.7777401129943513e+01, 1.8567780923662216e+00, 92.,
+       111., 886., 4.8639954853273132e+01, 2.0862187808505608e+00, 41.,
+       56., 886., 1.1998081264108352e+02, 1.2144139102806220e+00, 115.,
+       124., 886., 7.5695259593679452e+01, 3.7958216439826575e+00, 61.,
+       93., 915., 1.4989726775956285e+02, 1.2291287817720791e+00, 146.,
+       155., 915., 7.6278688524590166e+01, 1.4249664654205476e+00, 69.,
+       82., 915., 5.0009836065573772e+01, 5.0767778899235987e+00, 33.,
+       84., 870., 1.9989655172413794e+02, 1.1114294695204852e+00, 196.,
+       204., 870., 1.9029655172413794e+02, 1.5600949187039233e+00, 180.,
+       194., 870., 7.5060919540229889e+01, 4.8815593966427304e+00, 56.,
+       122., 915., 1.5694754098360656e+02, 1.1247255729473995e+00, 154.,
+       160., 915., 9.1795628415300541e+01, 1.1253572662403217e+00, 88.,
+       95., 915., 1.2020765027322405e+02, 1.5627307079811592e+00, 115.,
+       128., 899., 2.7309232480533925e+01, 3.0567552009661569e+00, 18.,
+       37., 899., 9.4481646273637381e+01, 1.6059009521768621e+00, 89.,
+       102., 899., 1.4615127919911012e+02, 1.5754745842609790e+00, 141.,
+       151., 946., 1.8069238900634249e+02, 1.1250958149684871e+00, 178.,
+       184., 946., 1.8332875264270615e+02, 1.0619091706908901e+00, 181.,
+       187., 946., 1.8893340380549682e+02, 1.3369067670391985e+00, 185.,
+       193., 962., 1.5142203742203742e+02, 9.5569896195477178e-01, 148.,
+       154., 962., 1.5618087318087319e+02, 9.8350642724810333e-01, 153.,
+       159., 962., 1.6121621621621622e+02, 1.2811714311504592e+00, 157.,
+       166., 976., 1.2489241803278689e+02, 1.0796667164870304e+00, 121.,
+       131., 976., 1.3006967213114754e+02, 1.0631988035078002e+00, 125.,
+       134., 976., 1.3304815573770492e+02, 1.4899721777609278e+00, 126.,
+       140., 946., 9.7050739957716701e+01, 1.2180654271464280e+00, 93.,
+       101., 946., 1.0161733615221988e+02, 1.0421739390034210e+00, 98.,
+       106., 946., 1.0038372093023256e+02, 2.4446752125049676e+00, 91.,
+       111., 977., 7.0025588536335718e+01, 1.1929339413930722e+00, 66.,
+       74., 977., 7.4783009211873079e+01, 1.2924463457807394e+00, 69.,
+       80., 977., 7.0187308085977477e+01, 3.3076200939718361e+00, 57.,
+       91., 978., 4.6092024539877308e+01, 1.9601651028627682e+00, 39.,
+       59., 978., 4.9716768916155424e+01, 1.7120244148104067e+00, 45.,
+       57., 978., 3.6976482617586917e+01, 4.2491980598153010e+00, 22.,
+       54. ]
+ccm: !!opencv-matrix
+   rows: 3
+   cols: 3
+   dt: d
+   data: [ 1.5716570001850085e+00, -2.8092439445926803e-01,
+       8.4539221097703107e-02, -2.1945308390378220e-02,
+       1.3776087064810523e+00, -1.8039879125793784e-01,
+       -2.8439953579767585e-02, 3.0335314988002327e-01,
+       1.4714738669924146e+00 ]
diff --git a/testdata/cv/mcc/mcc_ccm_test_res.png b/testdata/cv/mcc/mcc_ccm_test_res.png
new file mode 100644
index 000000000..36e027cff
Binary files /dev/null and b/testdata/cv/mcc/mcc_ccm_test_res.png differ
diff --git a/testdata/dnn/download_models.py b/testdata/dnn/download_models.py
index f6dfecac4..c7013795d 100755
--- a/testdata/dnn/download_models.py
+++ b/testdata/dnn/download_models.py
@@ -984,9 +984,20 @@ def is_archive(self):
         filename='onnx/models/yolov6n.onnx'),
     Model(
         name='yolov8n',
-        url='https://dl.opencv.org/models/yolov8/yolov8n.onnx',
+        url=[
+            'https://huggingface.co/cabelo/yolov8/resolve/main/yolov8n.onnx?download=true',
+            'https://dl.opencv.org/models/yolov8/yolov8n.onnx'
+        ],
         sha='136807b88d0b02bc226bdeb9741141d857752e10',
         filename='onnx/models/yolov8n.onnx'),
+    Model(
+        name='yolov8x',
+        url=[
+            'https://huggingface.co/cabelo/yolov8/resolve/main/yolov8x.onnx?download=true',
+            'https://dl.opencv.org/models/yolov8/yolov8x.onnx'
+        ],
+        sha='462f15d668c046d38e27d3df01fe8142dd004cb4',
+        filename='onnx/models/yolov8x.onnx'),
 
     Model(
         name='yolo_nas_s',
diff --git a/testdata/dnn/onnx/data/input_biased_matmul.npy b/testdata/dnn/onnx/data/input_biased_matmul.npy
new file mode 100644
index 000000000..f75f4cbad
Binary files /dev/null and b/testdata/dnn/onnx/data/input_biased_matmul.npy differ
diff --git a/testdata/dnn/onnx/data/output_biased_matmul.npy b/testdata/dnn/onnx/data/output_biased_matmul.npy
new file mode 100644
index 000000000..4f1342eb8
Binary files /dev/null and b/testdata/dnn/onnx/data/output_biased_matmul.npy differ
diff --git a/testdata/dnn/onnx/generate_onnx_models_with_onnxscript.py b/testdata/dnn/onnx/generate_onnx_models_with_onnxscript.py
index c908b7cf0..0b125ff95 100644
--- a/testdata/dnn/onnx/generate_onnx_models_with_onnxscript.py
+++ b/testdata/dnn/onnx/generate_onnx_models_with_onnxscript.py
@@ -6,6 +6,13 @@
 from onnxscript import opset11
 from onnxscript import opset13
 
+###############
+### CAUTION!!!
+### Be sure to put constant numpy arrays out of @ost.script() decorated fucntion.
+### Otherwise random values change each time eager mode is enter.
+### See discussions in https://github.com/microsoft/onnxscript/issues/1313
+###############
+
 np.random.seed(0)
 
 def make_model_and_data(model, *args, **kwargs):
@@ -339,3 +346,22 @@ def layer_norm_no_fusion(x: ost.FLOAT[n, c, h, w]) -> ost.FLOAT[n, c, h, w]:
 
     return add
 make_model_and_data(layer_norm_no_fusion, np.random.rand(n, c, h, w).astype(np.float32))
+
+
+''' Subgraph: [Input] -> MatMul<B> -> Add<A> -> [Output]
+'''
+
+b = 2
+m = 32
+n = 64
+k = 16
+weight_data = np.random.rand(k, n).astype(np.float32)
+bias_data = np.random.rand(n).astype(np.float32)
+
+@ost.script()
+def biased_matmul(x: ost.FLOAT[b, m, k]) -> ost.FLOAT[b, m, n]:
+    weight = op.Constant(value=onnx.helper.make_tensor("", onnx.TensorProto.FLOAT, [k, n], weight_data))
+    matmul = op.MatMul(x, weight)
+    bias = op.Constant(value=onnx.helper.make_tensor("", onnx.TensorProto.FLOAT, [n], bias_data))
+    return op.Add(bias, matmul)
+make_model_and_data(biased_matmul, np.random.rand(b, m, k).astype(np.float32), use_ort=True, ort_input_keys=["x"])
diff --git a/testdata/dnn/onnx/models/biased_matmul.onnx b/testdata/dnn/onnx/models/biased_matmul.onnx
new file mode 100644
index 000000000..373127487
Binary files /dev/null and b/testdata/dnn/onnx/models/biased_matmul.onnx differ
diff --git a/testdata/dnn/tflite/fully_connected.tflite b/testdata/dnn/tflite/fully_connected.tflite
new file mode 100644
index 000000000..d3b4a0144
Binary files /dev/null and b/testdata/dnn/tflite/fully_connected.tflite differ
diff --git a/testdata/dnn/tflite/fully_connected_inp.npy b/testdata/dnn/tflite/fully_connected_inp.npy
new file mode 100644
index 000000000..23b216047
Binary files /dev/null and b/testdata/dnn/tflite/fully_connected_inp.npy differ
diff --git a/testdata/dnn/tflite/fully_connected_out_Identity.npy b/testdata/dnn/tflite/fully_connected_out_Identity.npy
new file mode 100644
index 000000000..f5098b3da
Binary files /dev/null and b/testdata/dnn/tflite/fully_connected_out_Identity.npy differ
diff --git a/testdata/dnn/tflite/generate.py b/testdata/dnn/tflite/generate.py
index 9e7f5992f..54d6acddf 100644
--- a/testdata/dnn/tflite/generate.py
+++ b/testdata/dnn/tflite/generate.py
@@ -52,15 +52,18 @@ def save_tflite_model(model, inp, name):
     converter = tf.lite.TFLiteConverter.from_concrete_functions([func])
     tflite_model = converter.convert()
 
-    interpreter = tf.lite.Interpreter(model_content=tflite_model)
-
     with open(f'{name}.tflite', 'wb') as f:
         f.write(tflite_model)
 
     out = model(inp)
+    out = np.array(out)
+
+    if len(inp.shape) == 4:
+        inp = inp.transpose(0, 3, 1, 2)
+        out = out.transpose(0, 3, 1, 2)
 
-    np.save(f'{name}_inp.npy', inp.transpose(0, 3, 1, 2))
-    np.save(f'{name}_out_Identity.npy', np.array(out).transpose(0, 3, 1, 2))
+    np.save(f'{name}_inp.npy', inp)
+    np.save(f'{name}_out_Identity.npy', out)
 
 
 @tf.function(input_signature=[tf.TensorSpec(shape=[1, 3, 3, 1], dtype=tf.float32)])
@@ -75,3 +78,27 @@ def replicate_by_pack(x):
 inp = np.random.standard_normal((1, 3, 3, 1)).astype(np.float32)
 save_tflite_model(replicate_by_pack, inp, 'replicate_by_pack')
 
+@tf.function(input_signature=[tf.TensorSpec(shape=[1, 3], dtype=tf.float32)])
+def split(x):
+    splitted = tf.split(
+        x, 3, axis=-1, num=None, name='split'
+    )
+    return tf.concat((splitted[2], splitted[1], splitted[0]), axis=-1)
+
+inp = np.random.standard_normal((1, 3)).astype(np.float32)
+save_tflite_model(split, inp, 'split')
+
+
+fully_connected = tf.keras.models.Sequential([
+  tf.keras.layers.Dense(3),
+  tf.keras.layers.ReLU(),
+  tf.keras.layers.Softmax(),
+])
+
+fully_connected = tf.function(
+      fully_connected.call,
+      input_signature=[tf.TensorSpec((1,2), tf.float32)],
+)
+
+inp = np.random.standard_normal((1, 2)).astype(np.float32)
+save_tflite_model(fully_connected, inp, 'fully_connected')
diff --git a/testdata/dnn/tflite/split.tflite b/testdata/dnn/tflite/split.tflite
new file mode 100644
index 000000000..1b4bd033d
Binary files /dev/null and b/testdata/dnn/tflite/split.tflite differ
diff --git a/testdata/dnn/tflite/split_inp.npy b/testdata/dnn/tflite/split_inp.npy
new file mode 100644
index 000000000..109d1d980
Binary files /dev/null and b/testdata/dnn/tflite/split_inp.npy differ
diff --git a/testdata/dnn/tflite/split_out_Identity.npy b/testdata/dnn/tflite/split_out_Identity.npy
new file mode 100644
index 000000000..a1ab63fd3
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diff --git a/testdata/highgui/readwrite/test_1_c4.jpg b/testdata/highgui/readwrite/test_1_c4.jpg
new file mode 100644
index 000000000..bfe51e42a
Binary files /dev/null and b/testdata/highgui/readwrite/test_1_c4.jpg differ