![]() pixelate() draws a pixelated version of the from image to the to canvas,, apply only after. resizeImage() resizes the output image if bigger than the defined max Height or max Width convertpalette() converts image with the defined color palette, apply only after. convertGrayscale() converts image to greyscale, apply only after. getpalette() returns array of current palette, can't be chained JPEG with quality (from 1 to 100) PNG-24 (without compression) Processing usually lasts for 0.5-30 seconds. Size of pixels: (1-100) Dithering: (0-100) 3) Output image format. setMaxHeight(int) set canvas image maximum height, it can resize the output image, max height overrides max width, only used when. 1) Specify image in BMP, GIF, JPEG, PNG, TIFF format: 2) Settings of 8-bit picture. setMaxWidth(int) set canvas image maximum width, it can resize the output image, only used when. setpalette(arr) sets the color palette to use, takes an array of rgb colors: ], int from 0 to 255 Its not possible to match 16+ million colors (8-bit color), 1+ billion colors. setFromImgSource(src) change the src from the image element A simple tool to convert a wavelength in nm to an RGB, hexadecimal or HSL. setDrawTo(elem) canvas elem to draw the image setDrawFrom(elem) elem to get the image to pixelate hideFromImg() hides the from image element, is applied on object creation draw() draw to canvas from image source and resizes if max height or max width is reached A dialog box allows the number of colors (2-256) to be specified. It’s a color picker that can be locked to any bit depth. You can chain all methods together, beware that the order they are applied can change the final result.Īpplying first the color palette and then the greyscale can give a slightlity different image. Converts to 8-bit indexed color using Heckberts median-cut color quantization algorithm. Or, if you want to create your own palette and lock it to 8bit color, look at my script, FastBit color picker. the bitmasks needed to convert between a color and a mapped integer. To : elem, defaults to document.getElementById("pixelitcanvas")įrom : elem, defaults to document.getElementById("pixelitimg") set the color for a single index in an 8-bit Surface palette. You can pass some options when creating the instance (you can alter them later using the api methods). Then load the pixelit.js script and apply it on an image. You can set the current color depth in lv_conf.h, by setting the LV_COLOR_DEPTH define to 1 (monochrome), 8, 16 or 32.To use the quick default configuration you need an element from where to draw the image and canvas element with the id pixelitcanvas. The lv_color_t, lv_color1_t, lv_color8_t, lv_color16_t and lv_color32_t types have four fields: Lv_opa_t A simple uint8_t type to describe opacity. Used to build color arrays from plain numbers. Lv_color_int_t uint8_t, uint16_t or uint32_t depending on color depth setting. Lv_color_t Equal to lv_color1/8/16/24_t depending on current color depth setting Lv_color32_t A structure to store R (8 bit),G (8 bit), B (8 bit) components for 24-bit colors (4 byte) Lv_color16_t A structure to store R (5 bit),G (6 bit),B (5 bit) components for 16-bit colors (2 byte) Lv_color8_t A structure to store R (3 bit),G (3 bit),B (2 bit) components for 8-bit colors (1 byte) Also has R, G, B fields for compatibility but they are always the same value (1 byte) The following variable types are defined by the color module:
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