image_proc needs one camera_info for every image !?
I'm developing some camera driver, and also testing image_proc nodelets, but seems like it needs the camera_info msg for every image_raw. but it shouldn't be necessary because most of the parameters...
View ArticleCropping a raw camera image before it is rectified.
Hi, After reading a lot of Q&A's on the topic, I still can't seem to crop an input image before rectifying it. I hope someone can help me. I'm runing KUbuntu 14.04 and ROS indigo I can take a raw...
View Article[image_transport] Topics '/usb_cam/image_color' and '/usb_cam/camera_info' do...
please help me :( $ rosrun image_transport republish compressed in:=usb_cam/image raw out:=usb_cam/image $ ROS_NAMESPACE=usb_cam rosrun image_proc image_proc image_raw:=image _approximate_s=true...
View ArticleNo rectified image output
Hello, I am trying to generate a pointcloud from the depth camera of the robot pepper in conjunction with naoqi_driver, but I seem to get no output from the rectified image. When calling rostopic list...
View Articleimage_proc YUV422 Rectification messes up the colors
Hi, I have an image topic `camera/image_color` which has images streaming with the encoding `sensor_msgs::image_encodings::YUV422`. When I see this image on rqt, I can see the image normally with...
View Articleerror while loading shared libraries: libopencv_calib3d3.so.3.2: cannot open...
I see libopencv_calib3d.so, libopencv_calib3d.so.3.3, and libopencv_calib3d.so.3.3.1, but not what I need libopencv_calib3d.so.3.2 . I have tried several methods, update ubuntu, create a 3.2 to 3.3...
View ArticleWhy is image_raw better than image_rect_color ?
Hi,I am using Kinetic version. I made monocular camera calibration of Logitech c930e by using [this tutorial of ROS](http://wiki.ros.org/camera_calibration/Tutorials/MonocularCalibration). Afterwards,...
View ArticleRectification of single image.
Hi, I have been looking at ROS calibration recently, and I came across the term "rectification" being used for single images ( see [ROS image_proc](http://wiki.ros.org/image_proc) and [ROS...
View Articlecv_bridge tutorial example not compiling in ROS Kinetic and Ubuntu 16.04
Hi, I am trying to run the full example in the cv_bridge tutorial at http://wiki.ros.org/cv_bridge/Tutorials/UsingCvBridgeToConvertBetweenROSImagesAndOpenCVImages . I am having serious trouble...
View ArticleSingle image pair processing with stereo_image_proc
Now, stereo image proc works with a stream of input L and R images and outputs a stream as well. How do I make it just give me all the outputs (rectified images, disparity map, point cloud,..) for just...
View ArticleWhy do nodelets sometimes not start
I have a standard camera pipeline set up with nodelets: pointgrey_camera_driver -> image_proc (debayer/rectify) It's running inside of a nodelet manager called bumblebee2_nodelet_manager Sometimes,...
View Articleimage_proc not publishing image_rect data after synchronizing camera_info
I have a camera driver without the camera_info topic. I am publishing this topic separately and synchronizing them with all the image_proc topics. I am getting data in image_mono and image_color but...
View ArticleLibViso2 process has died
I am trying the libviso2 package for visual odometry in ROS jade.I am getting this error usb_cam/image_proc-1] process has died [pid 16445, exit code -11 Is it because the this package is available for...
View Articlerosbag conversion
I want to convert a image Mat type CV_32FC1 containing a depth map back into a Mat CV_16UC1 from which it originally came. Does the code below do this? Do I have normailze it? ( 1/255.0)? I hope this...
View ArticleProbleme with parameter queue_size in image_proc node
Hello everyone, I try to change the size of the message queue in image_proc by raising the parameter ~queue_size in a roslaunch file: . . . The parameter is raising correctly, it appears in rosparm...
View ArticleRGBD colour balance?
I am using Astra Pro with usb_cam. I calibrate the hue using v4lcup. Images are pulled using v4l driver. When I finish calibration the images looks fine in rviz. However, when I pass images from...
View ArticleCameraInfo publisher can't find .yaml file
I'm trying to publish a CameraInfo message so that I can (eventually) use image_proc. I tried to write the subscriber/publisher from scratch and ran into the issue with filling in entries in the D...
View ArticleHow to extract images from *.bag after image_proc?
I an trying to create pipe in .launch file in the following way: 1. Decompress image 2. Apply image_proc 3. Extract it Contents of the .launch file is the following: https://pastebin.com/8qtJLK2w As a...
View Articleimage_proc vs image_raw
Hi, all! I am quite misunderstood with playing image_view node and my mono camera. If I pass image_rect it shows very distorted image, whereas image_raw looks much better than image_proc. If I...
View ArticleWhy does stereo_image_proc use nodelets?
`image_proc` and `stereo_image_proc` both use nodelets in their design for each of the individual processing steps that they're doing (rectification, disparity, stereo etc.). What are the advantages of...
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