我是openCV的新手,发现做一些基本的东西真的很难,所以我非常感谢你的帮助。
我的问题看起来像是:
我有一个由地理坐标(纬度,经度)组成的点列表,格式为(49.074454444,22.72638888889)。这些点形成一个多边形但是一个凹面,我想要实现的是找到这个多边形的凹壳。
我的想法是通过绘制这些点来实现它,而不是使用一些形态变换作为扩张和侵蚀,以便这些点形成一个实心区域,而不是使用openCV提供的findContours方法。
我的第一个问题是我的做法是对的吗?我的意思是可以通过这种方式实现吗?
现在我的主要问题是什么。首先,我的所有积分仅相差6个数字,我不知道如何正确地插入"将它们放入Mat中因为我认为Mat由像素组成,所以行和列(int)。
我试图做这样的事情:
<s:DateTimeAxis AxisAlignment="Bottom"
AxisTitle="Top Axis"
BorderThickness="0,0,0,1"
Id="TopAxisId">
<s:DateTimeAxis.Resources>
<s:AxisAlignmentToAxisOrientationConverter x:Key="AxisAlignmentToAxisOrientationConverter" />
<s:CollapseIfNullOrEmptyStringConverter x:Key="CollapseIfNullOrEmptyStringConverter" />
</s:DateTimeAxis.Resources>
<s:DateTimeAxis.Template>
<ControlTemplate TargetType="s:AxisBase">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
s:Device.SnapsToDevicePixels="True">
<StackPanel x:Name="PART_AxisContainer"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Orientation="{Binding AxisAlignment, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay, Converter={StaticResource AxisAlignmentToAxisOrientationConverter}, ConverterParameter=Inverse}"
s:Device.SnapsToDevicePixels="True"
s:AxisLayoutHelper.AxisAlignment="{Binding AxisAlignment, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}">
<ContentPresenter Content="{TemplateBinding Scrollbar}" />
<Grid HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Canvas.ZIndex="1"
s:Device.SnapsToDevicePixels="True"
>
<s:AxisPanel x:Name="PART_AxisCanvas"
AxisAlignment="{TemplateBinding AxisAlignment}"
Background="Transparent"
DrawLabels="{TemplateBinding DrawLabels}"
DrawMajorTicks="{TemplateBinding DrawMajorTicks}"
DrawMinorTicks="{TemplateBinding DrawMinorTicks}"
IsLabelCullingEnabled="{TemplateBinding IsLabelCullingEnabled}"
MajorTickLineStyle="{TemplateBinding MajorTickLineStyle}"
MinorTickLineStyle="{TemplateBinding MinorTickLineStyle}"
s:Device.SnapsToDevicePixels="True">
<Image x:Name="PART_AxisBitmapImage"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Stretch="Fill"
s:Device.SnapsToDevicePixels="True" />
<Grid x:Name="PART_LabelsCanvas" Margin="{Binding LabelToTickIndent, RelativeSource={RelativeSource FindAncestor, AncestorType=s:AxisPanel}, Mode=OneWay}">
<s:TickLabelAxisCanvas AutoFitMarginalLabels="{TemplateBinding AutoFitMarginalLabels}"
Background="Transparent"
ClipToBounds="False"
IsLabelCullingEnabled="{TemplateBinding IsLabelCullingEnabled}"
s:Device.SnapsToDevicePixels="True" />
<s:TickLabelAxisCanvas AutoFitMarginalLabels="{TemplateBinding AutoFitMarginalLabels}"
Background="Transparent"
ClipToBounds="False"
IsLabelCullingEnabled="{TemplateBinding IsLabelCullingEnabled}"
Visibility="Collapsed"
s:Device.SnapsToDevicePixels="True" />
</Grid>
<s:AxisTitle Orientation="{TemplateBinding Orientation}"
Style="{TemplateBinding TitleStyle}"
Visibility="{Binding Content, RelativeSource={RelativeSource Self}, Converter={StaticResource CollapseIfNullOrEmptyStringConverter}}" />
</s:AxisPanel>
<s:ModifierAxisCanvas x:Name="PART_ModifierAxisCanvas"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
s:Device.SnapsToDevicePixels="True" />
</Grid>
</StackPanel>
</Border>
</ControlTemplate>
</s:DateTimeAxis.Template>
<s:DateTimeAxis.Scrollbar>
<s:SciChartScrollbar Margin="0 3 0 0" />
</s:DateTimeAxis.Scrollbar>
</s:DateTimeAxis>
但事实上,在绘制轮廓后,只有一个点被标记为255而它的像素(49,23)被标记为有意义。
我的最终目标是找回区域船体顶点的地理坐标。
我真的很感激任何帮助。