What is the meaning of point-by-point correction for full-color LED display? Full-color LED display point-by-point correction: Contains four correction modes, the maximum single point correction is 6144 (96*64, 128*48, etc.) pixels. If it exceeds, please select other correction modes. The correction data can be independent of the driver. Make settings.
Steps for setting correction data point by point:
1. In the full-color LED display receiving card setting dialog box, set the actual width and height of a card and send it to the receiving card.
2. Select the method to be calibrated (single point, 2×2 module, 4×4 module, 8×8 module), choose one of them → edit the number of corrections (Note: the maximum single-point correction is 96×64= 6144 pixels, please choose 2×2, 4×4, 8×8 modules if you exceed them).
3. Click "edit correction data" to enter the point correction editing state, manual correction: select the color to be corrected (red, green, blue), press and hold the (ctrl) key on the keyboard to select multiple pixels, and adjust the Select the number of points, click "Brightness Decrease Increase" or "Brightness Decrease" to adjust to the desired brightness. Click "OK", and then click "Send to Receiving Card" to check the full-color LED display. If it has reached the ideal state, you can click "Save to Receiving Card" to save it permanently. Generally speaking, you also need to save a backup to the computer Inside, so as to avoid data loss.
The steps to generate from photos are as follows:
A: Use high-end cameras. Camera requirements: a. Use professional or quasi-professional cameras. b. The pixel resolution should be as high as 10 million or more. c. It is best to use the camera CANON EOS400D or CANON EOS5D. EOS400D has been tested and the effect is good.
B: Connect a receiving card to the full-color LED display or cabinet that needs to be calibrated, and set the receiving card to no grayscale or 4-level or 8-level grayscale, the refresh rate is set to 1500hz or more, "synchronous refresh" "To be selected.
C: Let the full-color LED display display red, green and blue respectively, and take 3-5 photos each (Photography requirements: fix the camera with a bracket, face the LED screen, adjust the camera, make the photo as large as possible, and take There should be obvious separation between the pixels of the photo, not to connect into one piece, it is best to use manual operation.
D: Transfer to the computer, click "Generate from Photo" and select "Open Picture" to open the photo you just took. Each photo will be prompted to select the four corner pixels for positioning. When selecting, try to click the cross to a single point In the middle, after the selection, the computer will automatically mark all the points to check whether the marked points are wrong. If there is an error, click the "Reselect" button to reselect the four corner reference points. After multiple reselections, the pixels cannot be marked correctly. Point "Delete Picture" to cancel the use of the picture. If you need to see the brightness value of each pixel of the photo, you can click "Check Brightness" to view it. You can select all the box photos in turn, and the software will automatically identify the number of red, green, and blue photos, and mark the pixels with the lowest, highest, and highest brightness.
E: Set the expected value. According to the brightness of each lamp, select a value between the lowest brightness and the highest brightness. The value should be consistent with the expected value among the cabinets. All cabinets will approach the expected value to make the cabinets The brightness is the same between the two.
F: After clicking "Save and Exit", the software will convert the brightness value of each photo into point correction data and fill in the correction table.
4. Click "OK" and then click "Send to Receiving Card". After confirming that it is correct, you can click "Save to Receiving Card" and "Save to File".
