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converting rgb values to hsv values 18 Years Ago by tristan17 Hi, I am looking for the algorthim for converting rgb to hsv values. Does anyone know of any program or algorithm in php?? thanks in advance, tris 'COLOR_BGR2HSV' : undeclared identifier 10 Years Ago by Vaaal … objects based on the HSV slider values. cvtColor(cameraFeed,HSV,COLOR_BGR2HSV); inRange(HSV,Scalar(H_MIN,S_MIN,V_MIN),…threshold); morphOps(threshold); imshow(windowName2,threshold); trackFilteredObject(threshold,HSV,cameraFeed); } //show frames //imshow(windowName2,threshold); imshow… Colour Conversion Class 9 Years Ago by diafol …=> 0 [2] => 1 [3] => 0.49803921568627 ) [hsv] => Array ( [0] => 60 [1] => 100%…name'=>'Name','hsl'=>'HSL','cmyk'=>'CMYK','hsv'=>'HSV'); $in = strtolower(trim($formatIn)); $out = … Re: 'COLOR_BGR2HSV' : undeclared identifier 10 Years Ago by JasonHippy …(frame, imgHSV, CV_BGR2HSV); //Change the color format from BGR to HSV` Which looks as if it is exactly what you are… Storing colors 15 Years Ago by Lucrezia … varying color systems (RGB, HSL, CMYK and LAB and/or HSV might be added later), so an enum field will be… Mandelbrot coloring. Opencl 12 Years Ago by K0ns3rv … the coloring is based on the iteration count generating a HSV color. TL;DR So for my question, how am I… Re: Calculate the RGB of a Pixel 14 Years Ago by JasonHippy … more detailed info on the properties of the selected colour. (HSV, RGB, and HEX values). Trust me it sounds much more… Re: Multiple Switch variables in a switch statement 14 Years Ago by josolanes … one to the other, with the exception of HSL or HSV to the others and, so far, with the exception of… Re: how to subdivide an axis using matplotlib 13 Years Ago by richieking …', 'get_scale_names', 'getp', 'ginput', 'gray', 'grid', 'hexbin', 'hist', 'hlines', 'hold', 'hot', 'hsv', 'imread', 'imsave', 'imshow', 'interactive', 'ioff', 'ion', 'is_numlike', 'is_string_like', 'ishold', 'isinteractive… Re: image to ascii text 13 Years Ago by madCoder … a color. Break that down into Hue, Saturation, and Value (HSV.) The Hue and Saturation become the color of the letter… Re: urgent 12 Years Ago by dantinkakkar Though we don't do other people's homework for them, and will not help you if you haven't done anything yourself, but since your post was marked [B]urgent[/B], you may have a look at this: [url]http://stackoverflow.com/questions/2399150/convert-rgb-value-to-hsv[/url] Re: converting rgb values to hsv values 18 Years Ago by Phaelax I wrote this for ya. Values from the function matched with what I get in Photoshop 5. I'm not sure how I know this, but H is out of 360 degrees, and S and V are a percentage. (incase you wondered about my output formula) [code] <? RGBtoHSV(110,143,176); function RGBtoHSV($red, $green, $blue) { $r = $red / 255.0; $g = $green / 255.0;… Re: converting rgb values to hsv values 18 Years Ago by tristan17 Hi Phaelax, thanks for your code, i will try it and tell you what's the results. Appreciate lots, tristan Re: converting rgb values to hsv values 14 Years Ago by muralibobby2015 just copy pste this coe. and first you create folder name as photo..[CODE]<?php ob_start(); extract($_POST); //echo $photo;exit; if($_POST) { $img_name=$_FILES["photo"]["name"]; //photo input field $randomizer = rand(0000, 9999); $file_name = $randomizer.$img_name; move_uploaded_file($_FILES["photo"… Re: converting rgb values to hsv values 14 Years Ago by godelfin The script works, but you have a typo in your example: [QUOTE=Phaelax;186355] [code] <? function RGBtoHSV($red, $green, $blue) { $min = min(min($r, $g),$b); $max = max(max($d, $g),$b); [/code] [/QUOTE] The $max variable should read $max = max(max($r, $g),$b). You have a $d in there. So it should read like this: [code] <? … Re: converting rgb values to hsv values 14 Years Ago by almostbob [url]http://www.sourcecodeonline.com/details/hsv_conversion_utilities.html[/url] Changing the colour/HSV of a pixmap/pixbuf with a slider? 14 Years Ago by code177 Hi all! This is something I've been trying to figure out for a long time now. I have a pixbuf that I'd like to change the hue, saturation and/or brightness with using sliders, however I've not been able to find anything that points me in the right direction. If anyone has any ideas of how this can be done (seems impossible at the moment), I… Re: Changing the colour/HSV of a pixmap/pixbuf with a slider? 14 Years Ago by vegaseat Here is a code snippet that uses sliders to adjust the RGB values of a color. Look at: [url]http://www.daniweb.com/code/snippet216694.html[/url] Re: Colour Conversion Class 9 Years Ago by broj1 Nice job. Haven't tested the class but after scanning the code it is obvious that this is a nice example of clean coding / useful functionality. Quite some work must have been put into this to gather all the information an put it into this little tool. I remember myself struggling a couple of times needing to convert between formats. Adding … Re: Colour Conversion Class 9 Years Ago by diafol No problem :) I've added css output for those formats that support it (string as opposed to array) and I've got HSLa sorted - but as RGBa is related to the internal workings (rgb), I'm looking at a major bit of refactoring -especially the constructor. Never mind - it's all good practice :) Re: Colour Conversion Class 9 Years Ago by pritaeas You could use [array_flip](http://www.php.net/manual/en/function.array-flip.php) to remove the need for the two constant arrays. Although a conversion is needed then. Re: Colour Conversion Class 9 Years Ago by diafol Yes I'm aware of the array_flip. It may be an idea - I'd then store the array in class scope - probably where it need to be actually. The additional conversion from int to rgb/a shouldn't be a problem. Good idea :) BTW - I've added support for opacity and css strings. However, on further testing I've found that the HSL conversion is acting … Re: Storing colors 15 Years Ago by Stylish Two tables. Table1 is simply Color Names and Type. [code] create table Colors ( id int not null ,name varchar(16) not null ,system tinyint not null ) [/code] 'system' maps to a numerical value (1 = RGB, 2 = CMYK, etc) Table 2 is a table of key:value pairs [code] create table ColorPairs ( colorid int not null ,key … Re: Storing colors 15 Years Ago by Lucrezia I finally decided to go with #3, so it's a bit late now.. Thanks for your time though :) Re: Mandelbrot coloring. Opencl 12 Years Ago by mrnutty [URL="http://stackoverflow.com/questions/369438/smooth-spectrum-for-mandelbrot-set-rendering"]http://stackoverflow.com/questions/369438/smooth-spectrum-for-mandelbrot-set-rendering[/URL] Re: Mandelbrot coloring. Opencl 12 Years Ago by K0ns3rv [QUOTE=firstPerson;1777717][URL="http://stackoverflow.com/questions/369438/smooth-spectrum-for-mandelbrot-set-rendering"]http://stackoverflow.com/questions/369438/smooth-spectrum-for-mandelbrot-set-rendering[/URL][/QUOTE] Thank you for the help, but I've already stumbled upon that discussion before and it's pretty much the root of my … Re: Mandelbrot coloring. Opencl 12 Years Ago by mrnutty I haven't worked with mandelbrot set but try using this : [code] //zn is your last complex number used and n is the iteration count flota smoothcolor = n + 1 - Math.log(Math.log(zn.abs()))/Math.log(2) Color col = Color.HSBtoRGB(0.95f + 10 * smoothcolor ,0.6f,1.0f); [/code] Re: Mandelbrot coloring. Opencl 12 Years Ago by K0ns3rv I've trie something like that but it just doesn't work at all. Smoothcolor is supose to be within [0,1) if you divide it by max iterations. And the code you posted doesn't seem to make any sense because for Color.HSBtoRGB the hue should be [0,1] and in that case if iterations are n it will be in [n,n+1). Maybe I am doing something really wrong, …