Impress 8.0.9 is released
31 May 2022
- Screen capture: utility tool to capture video footage and images from proprietary media players if native import of the format is not possible. The tool performs a pixel wise clone of the digital image output of the graphics card. Besides a user selected video area, the time code (if present) can also be captured simultaneously. The tool facilitates automatic speed adjustment and avoids creating recordings that contain duplicate frames. A demonstration of this program is given in this video.
- Spanish version
- Avigilon input engine with channel selection
- Image (optionally) added to processing log
- Local contrast for example to compensate for shadows or over exposed areas. Three implementations of the filter are included: Equalize, Stretch and MinMax.
- Logical combination filter, to combine two images or a video and an image using arithmetic operations add, subtract, multiply and divide.
- MidPoint filter, taking the middle value between the local minimum and maximum pixel value. Useful to lowpass fax images, to produce a less fragmented image.
- Extrema filter with two implementations: local minimum or local maximum.
- Bandpass direct filter with 2 Hummel implementations, calculating the middle frequency signal directly from the image. This is an alternative filter for the frequency spectrum based Band pass filter.
- Threshold filter, mapping all pixel values below the user adjusted threshold level to black, and above to white. Useful alternative view on for example poor quality number plate pictures.
- Shift lines filter, allowing the adjustment of the two image fields in interlace video. This is a useful alternative to deinterlacing, which reduces the vertical resolution of an image.
- Subtitle (if present) added below main display, also raw subtitle data can be displayed
- Subtitle added to overlay (annotation). If a subtitle stream is available in the media file, the data corresponding to a video frame can be displayed as overlay text and recorded to output video (or still image).
- Calculated frame index: the frame index (0-based) can be displayed on the overlay (annotation layer).
- Calculated time stamp: a time stamp calculated from the native frames per second of a video can be displayed on the overlay (annotation layer). The time stamp option has an offset parameter, defining the time stamp of the first frame.
- Timeline offset option: The time displayed on the timeline control, can be adjusted with a offset parameter (defining the time of the first frame)
- Goto specified time: navigate to a video frame, using a user specified time. Click inside the time edit box to show the time control.
- Goto specified frame index: navigate to a video frame, using a user specified index. Click inside the frame index edit box to show the frame index control.
- Squash: option added to the pipet tool panel, which maps all pixels with minimum or maximum value to red and yellow. Useful to analyze the data content of an image.
- The active I-Frame mode is added to processing log
- Dragging ROI outside image in detail window is avoided.