此行错误

Question

我正在尝试在pycharm中使用EAST文本检测器，但该行出现错误。 (scores, geometry) = net.forward(layerNames)

cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\dnn\src\layers\concat_layer.cpp:95: error: (-201:Incorrect size of input array) Inconsistent shape for ConcatLayer in function 'cv::dnn::ConcatLayerImpl::getMemoryShapes'

代码：

print("[INFO] loading EAST text detector...")
name = 'Pictures/non crop/maths soln analysis 4_89.jpg'
image = cv2.imread(name, 1)
(H, W) = image.shape[:2]

设置新的宽度和高度，然后确定变化的比例宽度和高度

(newW, newH) = (375, 500)
rW = W / float(newW)
rH = H / float(newH)
# resize the image and grab the new image dimensions
image = cv2.resize(image, (newW, newH))
orig = image.copy()
(H, W) = image.shape[:2]
net = cv2.dnn.readNet("frozen_east_text_detection.pb")
layerNames = [
"feature_fusion/Conv_7/Sigmoid",
"feature_fusion/concat_3"]

根据图像构造斑点，然后执行正向传递获取两个输出层集的模型

blob = cv2.dnn.blobFromImage(image, 1.0, (W, H),
(123.68, 116.78, 103.94), swapRB=True, crop=False)
start = time.time()
net.setInput(blob)

此行错误

(scores, geometry) = net.forward(layerNames)

Answer 1

您不是resizing to a multiple of 32。

重要：EAST文本要求您输入的图像尺寸是32的倍数，因此，如果您选择调整--width和--height值，请确保它们是32的倍数！

Answer 2

更改此行

private const int ScrollMinLimit = 0;
private const int ScrollMaxLimit = 190;
private void ScrollView_Scrolled(object sender, ScrolledEventArgs e)
{
    var val = MathHelper.ReMap(e.ScrollY, ScrollMinLimit, ScrollMaxLimit, 1, 0);

    this.infoPanel.Scale = val;
    this.infoPanel.Opacity = val;
}

到

public static class MathHelper
{
    public static double ReMap(double oldValue, double oldMin, double oldMax, double newMin, double newMax)
    {
        return (((oldValue - oldMin) / (oldMax - oldMin)) * (newMax - newMin)) + newMin;
    }
}

Answer 3

我在OpenCV 4.1.1中遇到了相同的错误。我正在尝试运行此。我的图片是320x320。

# define the two output layer names for the EAST detector model that
# we are interested -- the first is the output probabilities and the
# second can be used to derive the bounding box coordinates of text
layerNames = [
    "feature_fusion/Conv_7/Sigmoid",
    "feature_fusion/concat_3"]
# load the pre-trained EAST text detector
print("[INFO] loading EAST text detector...")
net = cv.dnn.readNet(east_network)

# construct a blob from the image and then perform a forward pass of
# the model to obtain the two output layer sets
blob = cv.dnn.blobFromImage(image, 1.0, (W, H),
    (123.68, 116.78, 103.94), swapRB=True, crop=False)
start = time.time()
net.setInput(blob)
(scores, geometry) = net.forward(layerNames)
end = time.time()

# show timing information on text prediction
print("[INFO] text detection took {:.6f} seconds".format(end - start))

但是当我运行它时，出现以下错误：

[INFO] loading EAST text detector...

---------------------------------------------------------------------------
error                                     Traceback (most recent call last)
<ipython-input-11-cb4226399d04> in <module>
     15 start = time.time()
     16 net.setInput(blob)
---> 17 (scores, geometry) = net.forward(layerNames)
     18 end = time.time()
     19 

error: OpenCV(4.1.1) /io/opencv/modules/dnn/src/layers/concat_layer.cpp:95: error: (-201:Incorrect size of input array) Inconsistent shape for ConcatLayer in function 'getMemoryShapes'

Answer 4

在终端中简单运行以下命令：

python text_detection.py --image images/car_wash.png --east frozen_east_text_detection.pb

Answer 5

当大小相同时，不会发生此错误；但是当大小更改为例如从320x320更改为640x640时，确实会发生。此问题与调整为32的倍数无关。

640x640是32的两倍，但是错误仍然出现。

320x320: OK，然后640x640: Inconsistent shape for ConcatLayer

pycharm中OpenCV EAST文本检测器中的net.forward（）错误

此行错误

5 个答案: