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src/main/macro/interactive_webcam_acquisition_move_rect.ijm
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| // CLIJ example macro: interactive_webcam_acquisition_move_rect.ijm | ||
| // | ||
| // This macro shows how use a webcam with CLIJ. | ||
| // It furthermore demonstrates how to move an ROI according to | ||
| // how the center of mass inside that ROI is changing. | ||
| // | ||
| // To run that script, please activate the clij and clij2 update | ||
| // sites in Fiji. | ||
| // https://clij.github.io/clij-docs/installationInFiji | ||
| // | ||
| // Author: Robert Haase | ||
| // March 2020 | ||
| // This macro shows how use a webcam with CLIJ. | ||
| // It furthermore demonstrates how to move an ROI according to | ||
| // how the center of mass inside that ROI is changing. | ||
| // | ||
| // To run that script, please activate the clij and clij2 update | ||
| // sites in Fiji. | ||
| // https://clij.github.io/clij-docs/installationInFiji | ||
| // | ||
| // Author: Robert Haase | ||
| // March 2020 | ||
| // --------------------------------------------- | ||
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| run("Close All"); | ||
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| // init GPU | ||
| run("CLIJ Macro Extensions", "cl_device="); | ||
| run("CLIJ2 Macro Extensions", "cl_device="); | ||
| Ext.CLIJ2_clear(); | ||
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| // list cameras and get the last entry | ||
| Ext.CLIJx_listWebcams(); | ||
| camera_index = getResult("Camera_Index", nResults() - 1); | ||
| image_width = getResult("Image_Width", nResults() - 1); | ||
| image_height = getResult("Image_Height", nResults() - 1); | ||
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| // start acquisition | ||
| Ext.CLIJx_startContinuousWebcamAcquisition(camera_index, image_width, image_height); | ||
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| // an empty image serves as cancel button for the acquisition | ||
| cancelText = "Close this window to cancel acquisition"; | ||
| newImage(cancelText, "8-bit", 400, 10, 1); | ||
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| run("Set Measurements...", "center bounding redirect=None decimal=3"); | ||
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| time = getTime(); | ||
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| old_x = 0; | ||
| old_y = 0; | ||
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| // define minimu / maximum shift | ||
| max_shift = 10; | ||
| min_shift = 0.1; | ||
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| for (i = 0; i < 10000; i++) { | ||
| print("\\Clear"); | ||
| print(i); | ||
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| // measure frame delay | ||
| deltaTime = getTime() - time; | ||
| time = getTime(); | ||
| print("frame delay: " + deltaTime); | ||
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| // list cameras and get the last entry | ||
| Ext.CLIJx_listWebcams(); | ||
| camera_index = getResult("Camera_Index", nResults() - 1); | ||
| image_width = getResult("Image_Width", nResults() - 1); | ||
| image_height = getResult("Image_Height", nResults() - 1); | ||
| // start acquisition | ||
| Ext.CLIJx_startContinuousWebcamAcquisition(camera_index, image_width, image_height); | ||
| // an empty image serves as cancel button for the acquisition | ||
| cancelText = "Close this window to cancel acquisition"; | ||
| newImage(cancelText, "8-bit", 400, 10, 1); | ||
| run("Set Measurements...", "center bounding redirect=None decimal=3"); | ||
| time = getTime(); | ||
| old_x = 0; | ||
| old_y = 0; | ||
| // define minimu / maximum shift | ||
| max_shift = 10; | ||
| min_shift = 0.1; | ||
| for (i = 0; i < 10000; i++) { | ||
| print("\\Clear"); | ||
| print(i); | ||
| // measure frame delay | ||
| deltaTime = getTime() - time; | ||
| time = getTime(); | ||
| print("frame delay: " + deltaTime); | ||
| // acquire image and send it to GPU | ||
| input = "input"; | ||
| Ext.CLIJx_captureWebcamImage(input, camera_index, image_width, image_height); | ||
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| // flip the input | ||
| flipped = "flipped"; | ||
| Ext.CLIJ2_flip3D(input, flipped, true, false, false); | ||
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| input_r = "input_r"; | ||
| Ext.CLIJ2_copySlice(flipped, input_r, 0); | ||
| input_g = "input_g"; | ||
| Ext.CLIJ2_copySlice(flipped, input_g, 1); | ||
| input_b = "input_b"; | ||
| Ext.CLIJ2_copySlice(flipped, input_b, 2); | ||
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| // view the image | ||
| Ext.CLIJx_showRGB(input_r, input_g, input_b, "viewer"); | ||
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| // if there is any ROI | ||
| run("Measure"); | ||
| roi_width = getResult("Width", nResults() - 1); | ||
| roi_height = getResult("Height", nResults() - 1); | ||
| if (image_width != roi_width || image_height != roi_height) { | ||
| Roi.setStrokeWidth(2); | ||
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| // determine center of mass | ||
| center_of_mass_x = getResult("XM", nResults() - 1); | ||
| center_of_mass_y = getResult("YM", nResults() - 1); | ||
| print("center of mass x" + center_of_mass_x); | ||
| print("center of mass y" + center_of_mass_y); | ||
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| abs_delta_x = abs(old_x - center_of_mass_x); | ||
| abs_delta_y = abs(old_y - center_of_mass_y); | ||
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| // if shift is large enough, reposition the ROI | ||
| if (abs_delta_x < max_shift && abs_delta_x > min_shift && abs_delta_y < max_shift && abs_delta_y > min_shift) { | ||
| makeRectangle(center_of_mass_x - roi_width / 2, center_of_mass_y - roi_height / 2, roi_width, roi_height); | ||
| } | ||
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| old_x = center_of_mass_x; | ||
| old_y = center_of_mass_y; | ||
| } | ||
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| // in case the first window was closed, cancel the program | ||
| if (!isOpen(cancelText)) { | ||
| print("Exiting"); | ||
| break; | ||
| } | ||
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| if (i > 0) { | ||
| //break; | ||
| } | ||
| wait(50); | ||
| } | ||
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| // stop acquisition | ||
| Ext.CLIJx_stopContinuousWebcamAcquisition(camera_index); | ||
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| print("Bye"); | ||
| input = "input"; | ||
| Ext.CLIJx_captureWebcamImage(input, camera_index, image_width, image_height); | ||
| // flip the input | ||
| flipped = "flipped"; | ||
| Ext.CLIJ2_flip3D(input, flipped, true, false, false); | ||
| input_r = "input_r"; | ||
| Ext.CLIJ2_copySlice(flipped, input_r, 0); | ||
| input_g = "input_g"; | ||
| Ext.CLIJ2_copySlice(flipped, input_g, 1); | ||
| input_b = "input_b"; | ||
| Ext.CLIJ2_copySlice(flipped, input_b, 2); | ||
| // view the image | ||
| Ext.CLIJx_showRGB(input_r, input_g, input_b, "viewer"); | ||
| // if there is any ROI | ||
| run("Measure"); | ||
| roi_width = getResult("Width", nResults() - 1); | ||
| roi_height = getResult("Height", nResults() - 1); | ||
| if (image_width != roi_width || image_height != roi_height) { | ||
| Roi.setStrokeWidth(2); | ||
| // determine center of mass | ||
| center_of_mass_x = getResult("XM", nResults() - 1); | ||
| center_of_mass_y = getResult("YM", nResults() - 1); | ||
| print("center of mass x" + center_of_mass_x); | ||
| print("center of mass y" + center_of_mass_y); | ||
| abs_delta_x = abs(old_x - center_of_mass_x); | ||
| abs_delta_y = abs(old_y - center_of_mass_y); | ||
| // if shift is large enough, reposition the ROI | ||
| if (abs_delta_x < max_shift && abs_delta_x > min_shift && abs_delta_y < max_shift && abs_delta_y > min_shift) { | ||
| makeRectangle(center_of_mass_x - roi_width / 2, center_of_mass_y - roi_height / 2, roi_width, roi_height); | ||
| } | ||
| old_x = center_of_mass_x; | ||
| old_y = center_of_mass_y; | ||
| } | ||
| // in case the first window was closed, cancel the program | ||
| if (!isOpen(cancelText)) { | ||
| print("Exiting"); | ||
| break; | ||
| } | ||
| if (i > 0) { | ||
| //break; | ||
| } | ||
| wait(50); | ||
| } | ||
| // stop acquisition | ||
| Ext.CLIJx_stopContinuousWebcamAcquisition(camera_index); | ||
| print("Bye"); |