Questions tagged [pset4filter]
The pset4filter tag has no usage guidance.
91
questions
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7
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CS50 Blur Question. I have no idea why my get blur in the middle function does not work?
// Blur image
void blur(int height, int width, RGBTRIPLE image[height][width])
{
//Create a copy of image
RGBTRIPLE copy [height][width];
int i, j;
int redAverage, blueAverage, greenAverage;
for (i = ...
0
votes
0
answers
7
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My code could not make the blur requirement. I have tried to do some debugging by printing the count at the end of a loop. Count is always 9.00
void blur(int height, int width, RGBTRIPLE image[height][width])
{
RGBTRIPLE copy[height][width];
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
copy[i][j] =...
- 1
0
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0
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34
views
Blur in cs50 problem set 4
My code for the blur filter works fine to edge, corner and middle pixels, but it doesnt work right for a whole 3x3 or 4x4 picture i've been trying everything but nothing seems to fix it.
This is what ...
-1
votes
1
answer
26
views
PSET4 - Filter(more)- Edges- Check50 error
#include"helpers.h"
#include <math.h>
int check_cap(int num);
void edges(int height, int width, RGBTRIPLE image[height][width])
{
RGBTRIPLE image_copy[...
0
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0
answers
15
views
reflect PSET4 -filter(less)
void reflect(int height, int width, RGBTRIPLE image[height][width])
{
width = width/2;
for (int i = 0; i < height; i++)
{
int n = 1;
for (int j = 0; j < width; j++)
{
swap(&...
- 7
0
votes
1
answer
24
views
pset4 blur filter invalid or unsupported image format
In pset4 Filter problem when I write blur function I get Invalid or Unsopported Image Format Error. The program compiles without errors and in check50 it also works fine. This is my code. I would ...
0
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1
answer
25
views
PSET4 LESS BLUR function -Ending Edges problem 2nd version
New version of my previous problem here
PSET4 LESS BLUR function -Ending Edges problem
I know the problem is with the imitations but can't figure out what is it
My code works fine but for the ending ...
0
votes
1
answer
17
views
PSET4 LESS BLUR function -Ending Edges problem
My code works fine but for the ending edges not. I mean the right & bottom edges values. Here is my code :
void blur(int height, int width, RGBTRIPLE image[height][width])
{
// h = 400 w = ...
0
votes
1
answer
30
views
Not sure why code isn't working: PSet4 Filter (less) - Blur
I'm not sure why my code doesn't work for the blur section of pset4 (filter; less)? (I am aware there's a more efficient way to do this, but am interested in learning what's wrong with this specific ...
0
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1
answer
247
views
PSET4 filter less Blur function
I am stuck in Pset4-Filter/less the Blur function in particular. My problem is the image blurred correctly but does not pass check50.
Check50 result :
:( blur correctly filters middle pixel >> ...
0
votes
2
answers
155
views
Pset4 Blur (filter less) not passing check50
As title says, I am not passing check50 for blur. I am aware that my method is probably extremely tedious and not the best method, but I came up with it myself and would like to find out why it isn't ...
0
votes
1
answer
195
views
PSET4 Filter (Less) Sepia
:( sepia correctly filters simple 3x3 image
expected "100 89 69\n100...", not "100 89 69\n100..."
:( sepia correctly filters more complex 3x3 image
expected "25 22 17\...
- 1
0
votes
1
answer
103
views
pset4 filter Invalid or Unsupported Image Format
I have an issue with the pset4 filter,
I've applied grayscale filter and sepia filter and they are working already,
but when I started to write a code for reflect filter and try to compile then ...
0
votes
1
answer
63
views
Pset4 Im having issues with the blur filter
Im extremely close to solve this problem, this is the result of check50
:) helpers.c exists
:) filter compiles
:) grayscale correctly filters single pixel with whole number average
:) grayscale ...
1
vote
1
answer
84
views
Blur - I'm so close, but yet not 100%
Apologises for the long post: I wanted to be as explicit in my logic as possible
The code I've written uses the following logic to box blur:
Use nested for loop to access each pixel in image
Check ...
- 23
0
votes
1
answer
108
views
pset4 filter (more) edge not passing check50
this is my code for Edge, and it's not passing check50. below are the errors I got. any help is appreciated.
:( edges correctly filters middle pixel
expected "210 150 60\n", not "28 202 ...
- 23
0
votes
1
answer
136
views
Pset4 Filter sepia error from check50
below is my code for Pset4 filter(less). the code compiles fine, but I was getting these errors from check50. really appreciate if anyone can help. thanks
:( sepia correctly filters single pixel
...
- 23
0
votes
1
answer
55
views
PSet 4 Filter(less) Sepia - Why is my output image slightly red tinted?
At first, I forgot to cap the RGB values at 255 for sepia, and it resulted in white pixels being blue. But other areas were fine(proper sepia). So additionally, I added the ternary operators to check ...
0
votes
1
answer
14
views
cs50 pset4 grayfilter
Could someone explain me why there is a difference when you use float in front of image[i][j] compare to not using it. Because if I'm not mistaken, image[i][j].rgbtRed or the 2 others are already ...
- 3
0
votes
1
answer
20
views
result black or white filter edges
int superior( float value);
// Detect edges
void edges(int height, int width, RGBTRIPLE image[height][width])
{
float red_x, green_x, blue_x, red_y ,green_y ,blue_y ;
red_x = green_x = blue_x =...
0
votes
1
answer
33
views
Why is reflect filter not working Pset4?
Here is my code. I have overcomplicated it.
for (int i=0;i<height -1; i++)
{
for (int j=0;j<width- 1;j++)
{
int value[3];
value[0]=image[i][j].rgbtBlue;
value[1]=image[i][j]....
- 3
0
votes
2
answers
48
views
edges completely fails check50
So I finished my edges function and it's failing everything for check50 and I can't understand what I did wrong. Any help would be greatly appreciated.
Functions related to edges:
// Sets new RGB ...
- 1
1
vote
2
answers
53
views
Blur only working with middle pixel
I've been stuck in this problem for a while, and the code only works when its inputted a middle pixel. Does anyone have a clue? I've searched everywhere for this particular issue, but I have only ...
- 11
1
vote
1
answer
59
views
pset4 filter - only blurs the corners correctly
i can`t get the picture blurred at all (it comes out a complete mash up of colours blended together ...) ...i' ve been trying to figure this out for months now :(( HELP!
void blur(int height, int ...
- 109
0
votes
1
answer
38
views
Pset4 Blur filter, loop for searching surrounding pixels
I'm trying to write the part of the code where the surrounding pixels around the main pixel are searched in order to make the average and later replace the main value for the average value. I am ...
2
votes
1
answer
75
views
pset4 - filter program,can't figure out what exactly is the problem with blur!
Can't figure out what the problem with this code is. It seems to be working correctly for corners, but for nothing else. Please help!
void blur(int height, int width, RGBTRIPLE image[height][width])
{
...
0
votes
1
answer
65
views
CS50 Problem Set 4 Filter (less comfortable) help
So I have been struggling to correct my code to fix the blur function of pset4 and feel that my code is correct (even if it isn't optimally efficient).
Here's how I went about it:
First I looped ...
- 11
0
votes
1
answer
63
views
Cs50 Sepia properly coded
I did the sepia filter for the cs50 week 4 problem "filter) and although it works, I've been wondering, is there is not a more "proper" way to write the code, that is with out repeating ...
0
votes
1
answer
55
views
Runtime error in pset4
I'm currently working on filter.c, and I'm struggling with the blur segment of it. I tried to write a code (I'm aware it's a mess of hard-code, but it's an attempt!), but I keep getting this error:
...
- 51
0
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1
answer
112
views
CS50 Pset4 Filter (More comfortable) Edges Function
I am trying to code CS50's Pset4 Filter (More comfortable)'s edges function, but I keep on getting a different value.
This is the link to the video explaining what I am trying to do in this function, ...
- 3
0
votes
2
answers
65
views
Help with pset4 filter edge detection function
I have some problems with the edges function. The code compiles fine and all but the result looks like this:
https://imgur.com/a/S2MQLom
The edges of the image and one third of it don't look as ...
- 1
0
votes
1
answer
145
views
pset4 filter - blur function only filters image corners
This is my second attempt at this problem, and a full rewrite; I tried once before to be as eloquent as I could, and it was just totally wrong and bizarre. So I just tried to make this one as readable ...
- 19
0
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1
answer
140
views
Pset 4 Filter - Blur
My blur filter produces a decent looking blurred image and passes the Check50 corner pixel case.
I define the cases for the edges and the middle pixels and then manually calculate the average RGB ...
0
votes
1
answer
53
views
PSET4 Reflection Filter
I'm having trouble getting my head around the pointers needed for the reflection filter.
I have got to here and can't get the syntax right. Any tips would be much appreciated.
Thanks.
void reflect(int ...
0
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1
answer
59
views
PSET 4 BLUR and 2 of REFLECT
All of reflect works except reflected a 1 x 2 and a 4 x 4 (3x3 works fine)
None of blur works except for when a point is in the corner, which makes little sense.
I've sluthed around other answers and ...
- 15
0
votes
1
answer
35
views
Pset4 less comfortable compile error
When I try to compile my helpers.c file the compiler shows me
clang -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wno-unused-parameter -Wno-unused-variable -Wshadow helpers.c -...
1
vote
1
answer
74
views
pset4 - Green and Blue off in filter (less)
My code is here.
void sepia(int height, int width, RGBTRIPLE image[height][width])
{ for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
...
0
votes
1
answer
41
views
At my wits end on pset4 filter blur
I am stumped on this problem, more specifically, on the blur filter. I can't see anything wrong with the program, but it still errors out on check50. It seems that the middle function is correct, but ...
0
votes
1
answer
188
views
Need help with CS50's Filter (less) Blur
I'm doing CS50 and trying really hard to keep sane while I try to finish the last part of the Filter (less) exercise. I'm stuck on "Blur". I've tried to resist looking for help online ...
0
votes
1
answer
123
views
PSET4 Filter (more) Edge
I got some weird issue with my code!
It compiles without any problems. All other filters work perfectly, and check50 shows no problems (no problem in edge according to check50).
But, when i try edge ...
- 24
0
votes
1
answer
68
views
Is there an operator for raising in a power in C?
In PSET4 Edges Filter problem you are supposed to calculate Gx ^ 2. But the operator ^ in C does not seem to mean raising in a power. For Gx = -9 it returns Gx ^ 2 = -11 and so on. Turned out ^ is XOR ...
0
votes
1
answer
46
views
Pset4 Reflect not working on 4x4 image
I get the eror only for the 4x4 image, the others are correct. Seems like the values are swapped between each other, but I cant find a way to fix it. Something in the inner loop (I think) is swapping ...
0
votes
1
answer
214
views
Help with Blur filter! The output image is not blurred, but is returned as a darker image of the input
I have been stuck on this problem for days and have tried so many ways to write this code, but I continuously get errors. Nothing works. The output file is just returned as a darker image of the input ...
- 3
0
votes
1
answer
79
views
What is wrong with my filter blur?
Been stuck on the blurring part for ages... I've ran out of ideas and motivation to debug at this point after spending an eternity cutting down my spaghetti codes to pappardelle.
Any help/hint/...
0
votes
1
answer
312
views
PSET 4 - Filter: Anyone able to help me on Edges?
I'm having a lot of trouble figuring out how my code for edges is failing so badly every time. Any help on this would be greatly appreciated! Here is what I'm getting back from check50:
:( edges ...
0
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0
answers
39
views
PSET4 - Filter (Less) Blur - Keep getting :( blur correctly filters middle pixel expected "127 140 149\n", not "118 131 140\n"
void blur(int height, int width, RGBTRIPLE image[height][width])
{
//A box blur
//take the average of the surrounding pixels (1 row and 1 column away)
//Store all the surrounding and find ...
- 2
0
votes
1
answer
68
views
CS50 PSET4 Edge calculates correct values on all tests unless the correct value is 255
I am having problems with CS50 PSet 4 - Edge. The method passes the middle pixel test (which has no value of 255 on any channel) but on any other test all the values in each channel are correct ...
0
votes
1
answer
88
views
PSET 4 blur function only passing one test case
void blur(int height, int width, RGBTRIPLE image[height][width])
{
RGBTRIPLE copy[height][width];
int counter = 0;
int red = 0;
int blue = 0;
int green = 0;
for(int i=0; i<height; i++)
{
...
0
votes
1
answer
77
views
CS50 Filter blur
When I tried running this code under Check50, the value returned was completely off for some reason but I can't seem to figure out why. I then reduced the code to only calculating the rgbtBlue value ...
- 104
0
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1
answer
86
views
What is the explaination of the declaration of image array in filter
I was looking through the filter.c file in the pset4-filter-less and I want to understand the theory behind the declaration of array as shown below:
RGBTRIPLE(*image)[width] = calloc(height, width * ...
