Picture black and white and reverse color
Convert the picture to a grayscale, black and white binary map or inverse color map, preview and download the PNG locally.
Loading a local file tool…
Picture black and white and reverse color User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- Select a photo and toggle the grayscale or black and white binary mode.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
Grayscale uses RGB weighting, and the binary map determines black and white according to the self-fill threshold, and retains the transparent channel.
scope of use
Only PNG, JPEG, and WebP static pictures are supported, and the original metadata is not retained.
What is the difference between a black and white binary graph and a grayscale graph?
The grayscale chart retains different brightness levels, and the black and white binary map only keeps black and white according to the threshold; the reverse color is the red, green and blue channels respectively. All three modes retain transparent channels, export PNG, and do not retain the original camera metadata.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
Only PNG, JPEG, and WebP static pictures are supported, and the original metadata is not retained. Please compare the input unit, rounding method, applicable rules and data version first.