Image ROI#

相机的 Image ROI 功能允许您指定要使用传感器阵列的哪些部分采集图像。

ROI 是 Region of Interest（即兴趣区的英文首字母缩写，以前为 AOI = 兴趣区）。

如果指定了图像 ROI，则相机将仅传输该区域内的像素数据。在大多数相机上，这会大大提高相机的最大帧速率。

图像 ROI 设置独立于自动功能 ROI 设置。

该功能的使用#

更改 Image ROI 的位置和大小#

启用出厂设置后，相机将设置为默认分辨率。但是，您可以根据需要更改位置和大小。

要更改图像 ROI 的位置和大小，请执行以下操作：

确保相机空闲，即未在捕获图像。
If you are using an ace Classic/U/L camera, set the CenterX and CenterY parameters to false.
使用以下参数指定图像 ROI 的大小：
- Width
- Height
使用以下参数指定图像 ROI 的位置：
- OffsetX
- OffsetY

图像 ROI 的原点位于传感器阵列的左上角（第 0 列、第 0 行）。

示例：假设您指定了以下设置：

Width = 16
Height = 10
OffsetX = 2
OffsetY = 6

这将创建以下图像 ROI：

Image ROI 示例

信息

For area scan cameras:

在大多数相机上，减小 Image ROI 的大小（尤其是高度）会显著提高相机的最大帧速率。
如果启用了 Binning 功能，图像 ROI 设置是指经过像素合并的行和列，而不是传感器中的物理线路。
在 boA5120-230cc and boA5120-230cm cameras, the OffsetY parameter is not available. The position of the image ROI is always centered in vertically.
在 boA13440-17cm cameras, the position of the image ROI is always centered horizontally and vertically. If you change the width of the image ROI, the OffsetX parameter value adapts automatically so that the image ROI stays centered horizontally. If you change the height of the image ROI, the OffsetY parameter value adapts automatically so that the image ROI stays centered vertically.
Both the OffsetX and OffsetY parameters are read-only.

信息

For line scan cameras:

On all racer 2 cameras, the OffsetY parameter is not available.
On racer 2 cameras with CXP interface, the Height parameter is automatically set to 1 and can't be changed. For these cameras, the single lines are transmitted to the frame grabber individually. The frame grabber then combines them into a frame.
On racer 2 S cameras with GigE 或 5GigE interface, you can add several lines to build a frame. Use the Height parameter to define the maximum height of the image ROI, i.e., the height of the resulting frame that is transmitted to the host computer.
即： maximum number of lines per frame depends on the camera model:
- For r2L2048-29gc, r2L2048-58gm,r2L2048-62g5c, r2L2048-172g5m, r2L4096-29gm,and r2L4096-84g5m: 12000
- For r2L4096-14gc and r2L4096-42g5c: 10000

信息

For racer 2 S GigE cameras, you can use the Counter and Data Chunks features, in combination with the trigger settings, to specify which lines belong to a frame and which frames belong to the correct test object.

指导准则#

指定图像 ROI 时，请遵循以下准则：

指导准则	示例
`OffsetX` + `Width` ≤ `WidthMax`	Camera with a 1920 x 1080 pixel sensor: `OffsetX` + `Width` ≤ 1920
`OffsetY` + `Height` ≤ `HeightMax`	Camera with a 1920 x 1080 pixel sensor: `OffsetY` + `Height` ≤ 1080

即： WidthMax and HeightMax parameter values adapt to the current settings for Binning, Decimation, or Scaling (if available).

详情#

Image ROI 大小#

显示所有相机型号

相机型号	最小宽度	最小高度
a2A640-240gmSWIR	4	1
a2A640-240umSWIR	4	1
a2A1280-80gmSWIR	4	1
a2A1280-125umSWIR	4	1
a2A1920-51gcBAS	4	2
a2A1920-51gcPRO	4	2
a2A1920-51gmBAS	4	1
a2A1920-51gmPRO	4	1
a2A1920-160ucBAS	4	2
a2A1920-160ucPRO	4	2
a2A1920-160umBAS	4	1
a2A1920-160umPRO	4	1
a2A1920-165g5cBAS	4	2
a2A1920-165g5mBAS	4	1
a2A2048-35gmSWIR	4	1
a2A2048-110umSWIR	4	1
a2A2440-98g5cBAS	4	4
a2A2440-98g5mBAS	4	4
a2A2448-23gcBAS	4	2
a2A2448-23gcPRO	4	2
a2A2448-23gmBAS	4	1
a2A2448-23gmPRO	4	1
a2A2448-75ucBAS	4	2
a2A2448-75ucPRO	4	2
a2A2448-75umBAS	4	1
a2A2448-75umPRO	4	1
a2A2448-105g5cBAS	4	2
a2A2448-105g5mBAS	4	1
a2A2448-120cc	48	2
a2A2448-120cm	48	2
a2A2448-210cc	48	2
a2A2448-210cm	48	2
a2A2560-20gmSWIR	4	1
a2A2560-70umSWIR	4	1
a2A2590-22gcBAS	4	2
a2A2590-22gcPRO	4	2
a2A2590-22gmBAS	4	1
a2A2590-22gmPRO	4	1
a2A2590-60ucBAS	4	2
a2A2590-60ucPRO	4	2
a2A2590-60umBAS	4	1
a2A2590-60umPRO	4	1
a2A2600-20gcBAS	4	2
a2A2600-20gcPRO	4	2
a2A2600-20gmBAS	4	1
a2A2600-20gmPRO	4	1
a2A2600-64ucBAS	4	2
a2A2600-64ucPRO	4	2
a2A2600-64umBAS	4	1
a2A2600-64umPRO	4	1
a2A2840-14gcBAS	4	2
a2A2840-14gcPRO	4	2
a2A2840-14gmBAS	4	1
a2A2840-14gmPRO	4	1
a2A2840-14gmUV	4	1
a2A2840-48ucBAS	4	2
a2A2840-48ucPRO	4	2
a2A2840-48umBAS	4	1
a2A2840-48umPRO	4	1
a2A2840-48umUV	4	1
a2A2840-67g5cBAS	4	2
a2A2840-67g5mBAS	4	1
a2A2840-67g5mUV	4	1
a2A2840-86cc	48	2
a2A2840-86cm	48	2
a2A3840-13gcBAS	4	2
a2A3840-13gcPRO	4	2
a2A3840-13gmBAS	4	1
a2A3840-13gmPRO	4	1
a2A3840-45ucBAS	4	2
a2A3840-45ucPRO	4	2
a2A3840-45umBAS	4	1
a2A3840-45umPRO	4	1
a2A4096-9gcBAS	4	2
a2A4096-9gcPRO	4	2
a2A4096-9gmBAS	4	1
a2A4096-9gmPRO	4	1
a2A4096-30ucBAS	4	2
a2A4096-30ucPRO	4	2
a2A4096-30umBAS	4	1
a2A4096-30umPRO	4	1
a2A4096-44g5cBAS	4	2
a2A4096-44g5mBAS	4	1
a2A4096-67cc	48	2
a2A4096-67cm	48	2
a2A4200-12gcBAS	4	2
a2A4200-12gcPRO	4	2
a2A4200-12gmBAS	4	1
a2A4200-12gmPRO	4	1
a2A4200-40ucBAS	4	2
a2A4200-40ucPRO	4	2
a2A4200-40umBAS	4	1
a2A4200-40umPRO	4	1
a2A4504-5gcBAS	4	2
a2A4504-5gcPRO	4	2
a2A4504-5gmBAS	4	1
a2A4504-5gmPRO	4	1
a2A4504-18ucBAS	4	2
a2A4504-18ucPRO	4	2
a2A4504-18umBAS	4	1
a2A4504-18umPRO	4	1
a2A4504-27g5cBAS	4	2
a2A4504-27g5mBAS	4	1
a2A4504-42cc	48	2
a2A4504-42cm	48	2
a2A4508-6gcBAS	4	2
a2A4508-6gcPRO	4	2
a2A4508-6gmBAS	4	1
a2A4508-6gmPRO	4	1
a2A4508-20ucBAS	4	2
a2A4508-20ucPRO	4	2
a2A4508-20umBAS	4	1
a2A4508-20umPRO	4	1
a2A5320-7gcBAS	4	2
a2A5320-7gcPRO	4	2
a2A5320-7gmBAS	4	1
a2A5320-7gmPRO	4	1
a2A5320-23ucBAS	4	2
a2A5320-23ucPRO	4	2
a2A5320-23umBAS	4	1
a2A5320-23umPRO	4	1
a2A5320-34g5cBAS	4	2
a2A5320-34g5mBAS	4	1
a2A5320-52cc	48	2
a2A5320-52cm	48	2
a2A5328-4gcBAS	4	2
a2A5328-4gcPRO	4	2
a2A5328-4gmBAS	4	1
a2A5328-4gmPRO	4	1
a2A5328-15ucBAS	4	2
a2A5328-15ucPRO	4	2
a2A5328-15umBAS	4	1
a2A5328-15umPRO	4	1
a2A5328-22g5cBAS	4	2
a2A5328-22g5mBAS	4	1
a2A5328-35cc	48	2
a2A5328-35cm	48	2
acA640-121gm	1	1
acA640-300gc	16	2
acA640-300gm	16	1
acA640-750uc	16	2
acA640-750um	16	1
acA720-290gc	2	2
acA720-290gm	1	1
acA720-520uc	2	2
acA720-520um	1	1
acA800-200gc	16	2
acA800-200gm	16	1
acA800-510uc	16	2
acA800-510um	16	1
acA1280-60gc	2	2
acA1280-60gm	1	1
acA1300-60gc	2	2
acA1300-60gm	1	1
acA1300-60gmNIR	1	1
acA1300-75gc	16	2
acA1300-75gm	16	1
acA1300-200uc	16	2
acA1300-200um	16	1
acA1440-73gc	2	2
acA1440-73gm	1	1
acA1440-220uc	2	2
acA1440-220um	1	1
acA1600-20gc	2	2
acA1600-20uc	2	2
acA1600-60gc	2	2
acA1600-60gm	1	1
acA1920-25gc	64	64
acA1920-25gm	64	64
acA1920-25uc	64^a	64^a
acA1920-25um	64^a	64^a
acA1920-40gc	2	2
acA1920-40gm	1	1
acA1920-40uc	4	2
acA1920-40ucMED	4	2
acA1920-40um	4	1
acA1920-40umMED	4	1
acA1920-48gc	32	2
acA1920-48gm	32	1
acA1920-50gc	2	2
acA1920-50gm	1	1
acA1920-150uc	32	2
acA1920-150um	32	1
acA1920-155uc	4	2
acA1920-155ucMED	4	2
acA1920-155um	4	1
acA1920-155umMED	4	1
acA2000-50gc	2	2
acA2000-50gm	1	1
acA2000-165uc	8	2
acA2000-165um	8	1
acA2040-25gc	2	2
acA2040-25gm	1	1
acA2040-25gmNIR	1	1
acA2040-35gc	2	2
acA2040-35gm	1	1
acA2040-55uc	4	2
acA2040-55um	4	1
acA2040-90uc	8	2
acA2040-90um	8	1
acA2040-90umNIR	8	1
acA2040-120uc	4	2
acA2040-120um	4	1
acA2440-20gc	2	2
acA2440-20gm	1	1
acA2440-35uc	4	2
acA2440-35ucMED	4	2
acA2440-35um	4	1
acA2440-35umMED	4	1
acA2440-75uc	4	2
acA2440-75ucMED	4	2
acA2440-75um	4	1
acA2440-75umMED	4	1
acA2500-14gc	64	64
acA2500-14gm	64	64
acA2500-14uc	64^a	64^a
acA2500-14um	64^a	64^a
acA2500-20gc	32	2
acA2500-20gcMED	32	2
acA2500-20gm	32	1
acA2500-20gmMED	32	1
acA2500-60uc	32	1
acA2500-60um	32	1
acA3088-16gc	376	320
acA3088-16gm	376	320
acA3088-57uc	376	320
acA3088-57ucMED	376	320
acA3088-57um	376	320
acA3088-57umMED	376	320
acA3800-10gc	64	64
acA3800-10gm	64	64
acA3800-14uc	64	64
acA3800-14um	64^a	64^a
acA4024-8gc	8	6
acA4024-8gm	8	5
acA4024-29uc	8	6
acA4024-29um	8	5
acA4096-11gc	16	2
acA4096-11gm	16	1
acA4096-30uc	4	2
acA4096-30ucMED	4	2
acA4096-30um	4	1
acA4096-30umMED	4	1
acA4096-40uc	4	2
acA4096-40ucMED	4	2
acA4096-40um	4	1
acA4096-40umMED	4	1
acA4112-8gc	16	2
acA4112-8gm	16	1
acA4112-20uc	4	2
acA4112-20ucMED	4	2
acA4112-20um	4	1
acA4112-20umMED	4	1
acA4112-30uc	4	2
acA4112-30ucMED	4	2
acA4112-30um	4	1
acA4112-30umMED	4	1
acA5472-5gc	8	6
acA5472-5gm	8	5
acA5472-17uc	8	6
acA5472-17ucMED	8	6
acA5472-17um	8	5
acA5472-17umMED	8	5
boA1936-400cc	48	2
boA1936-400cm	48	2
boA2448-250cc	96/48^b	2
bo2448-250cm	48	2
boA2832-190cc	96/48^b	2
bo2832-190cm	48	2
boA4096-93cc	48	2
boA4096-93cm	48	2
boA4096-180cc	96/48^b	2
bo4096-180cm	48	2
boA4112-68cc	48	2
boA4112-68cm	48	2
boA4500-45cc	48	2
boA4500-45cm	48	2
boA4504-100cc	96/48^b	2
boA4504-100cm	96/48^b	2
boA5120-150cc	256	4
boA5120-150cm	256	4
boA5120-230cc	256	32
boA5120-230cm	256	32
boA5320-150cc	96/48^b	2
boA5320-150cm	96/48^b	2
boA5328-100cc	96/48^b	2
boA5328-100cm	96/48^b	2
boA6500-36cc	48	2
boA6500-36cm	48	2
boA8100-16cc	48	2
boA8100-16cm	48	2
boA9344-30cc	256	4
boA9344-30cm	256	4
boA9344-70cc	256	4
boA9344-70cm	256	4
boA13440-17cm	96/48^b	2
daA720-520uc	2	6
daA720-520um	4	3
daA1280-54uc	16	8
daA1280-54um	16	8
daA1440-220uc	2	6
daA1440-220um	4	3
daA1600-60uc	16	8
daA1600-60um	16	8
daA1920-15um	16	8
daA1920-30uc	16	8
daA1920-30um	16	8
daA1920-160uc	2	6
daA1920-160um	4	1
daA2448-70uc	2	6
daA2448-70um	4	3
daA2500-14uc	16	8
daA2500-14um	16	8
daA3840-45uc	2	6
daA3840-45um	4	4
dmA720-290gc	4	2
dmA720-290gm	4	1
dmA1440-73gc	4	2
dmA1440-73gm	4	1
dmA1920-51gc	4	2
dmA1920-51gm	4	1
puA1280-54uc	16	8
puA1280-54um	16	8
puA1600-60uc	16	8
puA1600-60um	16	8
puA1920-30uc	4	4
puA1920-30um	4	4
puA2500-14uc	4	4
puA2500-14um	4	4
r2L2048-29gc	4	1
r2L2048-58gm	4	1
r2L2048-62cc	48	1
r2L2048-62g5c	4	1
r2L2048-172cm	48	1
r2L2048-172g5m	4	1
r2L4096-14gc	4	1
r2L4096-29gm	4	1
r2L4096-42cc	48	1
r2L4096-42g5c	4	1
r2L4096-84cm	48	1
r2L4096-84g5m	4	1
r2L8192-200cm	64	1
r2L16384-120cm	64	1

启用像素合并后，最小宽度和最小高度将减小。值四舍五入到最接近的整数。示例：如果您将水平像素合并配置为 3，则有效最小宽度为 64 / 3 = 21.333 ≈ 22。
10 位像素格式/其他像素格式

示例代码#

ace Classic/U/L GigE 相机#

C++ (Native)C++ (Generic)C#C (Generic)Python

// Set the width to the maximum value
int64_t maxWidth = camera.Width.GetMax();
camera.Width.SetValue(maxWidth);
// Set the height to 500
camera.Height.SetValue(500);
// Set the offset to 0,0
camera.OffsetX.SetValue(0);
camera.OffsetY.SetValue(0);

INodeMap& nodemap = camera.GetNodeMap();
// Set the width to the maximum value
int64_t maxWidth = CIntegerParameter(nodemap, "Width").GetMax();
CIntegerParameter(nodemap, "Width").SetValue(maxWidth);
// Set the height to 500
CIntegerParameter(nodemap, "Height").SetValue(500);
// Set the offset to 0,0
CIntegerParameter(nodemap, "OffsetX").SetValue(0);
CIntegerParameter(nodemap, "OffsetY").SetValue(0);

// Set the width to the maximum value
Int64 maxWidth = camera.Parameters[PLCamera.Width].GetMaximum();
camera.Parameters[PLCamera.Width].SetValue(maxWidth);
// Set the height to 500
camera.Parameters[PLCamera.Height].SetValue(500);
// Set the offset to 0,0
camera.Parameters[PLCamera.OffsetX].SetValue(0);
camera.Parameters[PLCamera.OffsetY].SetValue(0);

/* Macro to check for errors */
#define CHECK(errc) if (GENAPI_E_OK != errc) printErrorAndExit(errc)
GENAPIC_RESULT errRes = GENAPI_E_OK;  /* Return value of pylon methods */
int64_t maxWidth = 0;
/* Set the width to the maximum value */
errRes = PylonDeviceGetIntegerFeatureMax(hdev, "Width", &maxWidth);
CHECK(errRes);
errRes = PylonDeviceSetIntegerFeature(hdev, "Width", maxWidth);
CHECK(errRes);
/* Set the height to 500 */
errRes = PylonDeviceSetIntegerFeature(hdev, "Height", 500);
CHECK(errRes);
/* Set the offset to 0,0 */
errRes = PylonDeviceSetIntegerFeature(hdev, "OffsetX", 0);
CHECK(errRes);
errRes = PylonDeviceSetIntegerFeature(hdev, "OffsetY", 0);
CHECK(errRes);

# Set the width to the maximum value
maxWidth = camera.Width.Max
camera.Width.Value = maxWidth
# Set the height to 500
camera.Height.Value = 500
# Set the offset to 0,0
camera.OffsetX.Value = 0
camera.OffsetY.Value = 0

其他相机#

C++ (Native)C++ (Generic)C#C (Generic)Python

// Set the width to the maximum value
int64_t maxWidth = camera.WidthMax.GetValue();
camera.Width.SetValue(maxWidth);
// Set the height to 500
camera.Height.SetValue(500);
// Set the offset to 0
camera.OffsetX.SetValue(0);
camera.OffsetY.SetValue(0);

INodeMap& nodemap = camera.GetNodeMap();
// Set the width to the maximum value
int64_t maxWidth = CIntegerParameter(nodemap, "WidthMax").GetValue();
CIntegerParameter(nodemap, "Width").SetValue(maxWidth);
// Set the height to 500
CIntegerParameter(nodemap, "Height").SetValue(500);
// Set the offset to 0
CIntegerParameter(nodemap, "OffsetX").SetValue(0);
CIntegerParameter(nodemap, "OffsetY").SetValue(0);

// Set the width to the maximum value
Int64 maxWidth = camera.Parameters[PLCamera.WidthMax].GetValue();
camera.Parameters[PLCamera.Width].SetValue(maxWidth);
// Set the height to 500
camera.Parameters[PLCamera.Height].SetValue(500);
// Set the offset to 0
camera.Parameters[PLCamera.OffsetX].SetValue(0);
camera.Parameters[PLCamera.OffsetY].SetValue(0);

/* Macro to check for errors */
#define CHECK(errc) if (GENAPI_E_OK != errc) printErrorAndExit(errc)
GENAPIC_RESULT errRes = GENAPI_E_OK;  /* Return value of pylon methods */
int64_t maxWidth = 0;
/* Set the width to the maximum value */
errRes = PylonDeviceGetIntegerFeature(hdev, "WidthMax", &maxWidth);
CHECK(errRes);
errRes = PylonDeviceSetIntegerFeature(hdev, "Width", maxWidth);
CHECK(errRes);
/* Set the height to 500 */
errRes = PylonDeviceSetIntegerFeature(hdev, "Height", 500);
CHECK(errRes);
/* Set the offset to 0 */
errRes = PylonDeviceSetIntegerFeature(hdev, "OffsetX", 0);
CHECK(errRes);
errRes = PylonDeviceSetIntegerFeature(hdev, "OffsetY", 0);
CHECK(errRes);

# Set the width to the maximum value
maxWidth = camera.WidthMax.Value
camera.Width.Value = maxWidth
# Set the height to 500
camera.Height.Value = 500
# Set the offset to 0
camera.OffsetX.Value = 0
camera.OffsetY.Value = 0

您也可以使用 pylon Viewer 轻松设置参数。